L78 Datasheet by STMicroelectronics

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KyIW,
TO-220FPTO-220
PAK
DPAK
Features
Output current up to 1.5 A
Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18; 24 V
Thermal overload protection
Short circuit protection
Output transition SOA protection
2 % output voltage tolerance (A version)
Guaranteed in extended temperature range (A version)
Description
The L78 series of three-terminal positive regulators is available in TO-220,
TO-220FP, D²PAK and DPAK packages and several fixed output voltages, making it
useful in a wide range of applications.
These regulators can provide local on-card regulation, eliminating the distribution
problems associated with single point regulation. Each type embeds internal current
limiting, thermal shut-down and safe area protection, making it essentially
indestructible. If adequate heat sinking is provided, they can deliver over 1 A output
current. Although designed primarily as fixed voltage regulators, these devices can
be used with external components to obtain adjustable voltage and currents.
Maturity status link
L78
Positive voltage regulator ICs
L78
Datasheet
DS0422 - Rev 36 - September 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
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1Diagram
Figure 2. Block diagram
GAMG220920161000MT
L78
Diagram
DS0422 - Rev 36 page 2/55
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2Pin configuration
Figure 3. Pin connections (top view)
TO-220FP
TO-220
D²PAK DPAK
GAMG220920161001MT
Figure 4. Schematic diagram
GAMG220920161002MT
L78
Pin configuration
DS0422 - Rev 36 page 3/55
VI 0 L78 0 V0 c. =O.33pF , Co=0.1pF __ cszszzo
3Maximum ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VIDC input voltage
for VO= 5 to 18 V 35
V
for VO= 20, 24 V 40
IOOutput current Internally limited
PDPower dissipation Internally limited
TSTG Storage temperature range -65 to 150 °C
TOP Operating junction temperature range
for L78xxC, L78xxAC 0 to 125
°C
for L78xxAB -40 to 125
Note: Absolute maximum ratings are those values beyond which damage to the device may occur. Functional
operation under these condition is not implied.
Table 2. Thermal data
Symbol Parameter D²PAK DPAK TO-220 TO-220FP Unit
RthJC Thermal resistance junction-case 3 8 5 5 °C/W
RthJA Thermal resistance junction-ambient 62.5 100 50 60 °C/W
Figure 5. Application circuits
GAMG220920161003MT
L78
Maximum ratings
DS0422 - Rev 36 page 4/55
VI 0 L78 0 V0 c. =0.33pF 7 W C0=O.1}JF ,, cmm VI 0 L78 a V0 [:IRL 270pF 0.33pF :: —| '— — v0 326;? >1——|:I——o —l '— 0v ' 1009 30m C O __ C5252.“ 5.1 0 VI C l—I L78 C) V0 :: HIM 0.33m- C O 120HZ 47OIJF 4:525:40
4Test circuits
Figure 6. DC parameter
GAMG220920161004MT
Figure 7. Load regulation
GAMG220920161005MT
Figure 8. Ripple rejection
GAMG220920161006MT
L78
Test circuits
DS0422 - Rev 36 page 5/55
5Electrical characteristics
VI = 10 V, IO = 1 A, TJ = 0 to 125 °C (L7805AC), TJ = -40 to 125 °C (L7805AB), unless otherwise specified.
Table 3. Electrical characteristics of L7805A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 4.9 5 5.1 V
VOOutput voltage IO = 5 mA to 1 A, VI = 7.5 to 18 V 4.8 5 5.2 V
VOOutput voltage IO = 1 A, VI = 18 to 20 V, TJ = 25 °C 4.8 5 5.2 V
∆VO (1) Line regulation
VI = 7.5 to 25 V, IO = 500 mA, TJ = 25 °C 7 50 mV
VI = 8 to 12 V 10 50 mV
VI = 8 to 12 V, TJ = 25 °C 2 25 mV
VI = 7.3 to 20 V, TJ = 25 °C 7 50 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 8 50
IqQuiescent current
TJ = 25 °C 4.3 6 mA
6 mA
∆IqQuiescent current change
VI = 8 to 23 V, IO = 500 mA 0.8 mA
VI = 7.5 to 20 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 8 to 18 V, f = 120 Hz, IO = 500 mA 68 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B =10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 17 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -1.1 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 6/55
VI = 11 V, IO = 1 A, TJ = 0 to 125 °C (L7806AC), TJ = -40 to 125 °C (L7806AB), unless otherwise specified.
Table 4. Electrical characteristics of L7806A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 5.88 6 6.12 V
VOOutput voltage IO = 5 mA to 1 A, VI = 8.6 to 19 V 5.76 6 6.24 V
VOOutput voltage IO = 1 A, VI = 19 to 21 V, TJ = 25 °C 5.76 6 6.24 V
∆VO (1) Line regulation
VI = 8.6 to 25 V, IO = 500 mA, TJ = 25 °C 9 60 mV
VI = 9 to 13 V 11 60 mV
VI = 9 to 13 V, TJ = 25 °C 3 30 mV
VI = 8.3 to 21 V, TJ = 25 °C 9 60 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25° C 4.3 6 mA
6 mA
∆IqQuiescent current change
VI = 9 to 24 V, IO = 500 mA 0.8 mA
VI = 8.6 to 21 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 9 to 19 V, f = 120 Hz, IO = 500 mA 65 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B =10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 17 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 7/55
VI = 14 V, IO = 1 A, TJ = 0 to 125 °C (L7808AC), TJ = -40 to 125 °C (L7808AB), unless otherwise specified.
Table 5. Electrical characteristics of L7808A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 7.84 8 8.16 V
VOOutput voltage IO = 5 mA to 1 A, VI = 10.6 to 21 V 7.7 8 8.3 V
VOOutput voltage IO = 1 A, VI = 21 to 23 V, TJ = 25 °C 7.7 8 8.3 V
∆VO (1) Line regulation
VI = 10.6 to 25 V, IO = 500 mA, TJ = 25 °C 12 80 mV
VI = 11 to 17 V 15 80 mV
VI = 11 to 17 V, TJ = 25 °C 5 40 mV
VI = 10.4 to 23 V, TJ = 25 °C 12 80 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25 °C 4.3 6 mA
6 mA
∆IqQuiescent current change
VI = 11 to 23 V, IO = 500 mA 0.8 mA
VI = 10.6 to 23 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA 62 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B =10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 18 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 8/55
VI = 15 V, IO = 1 A, TJ = 0 to 125 °C (L7809AC), TJ = -40 to 125 °C (L7809AB), unless otherwise
specified(Minimum load current for regulation is 5 mA.)
Table 6. Electrical characteristics of L7809A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 8.82 9 9.18 V
VOOutput voltage IO = 5 mA to 1 A, VI = 10.6 to 22 V 8.65 9 9.35 V
VOOutput voltage IO = 1 A, VI = 22 to 24 V, TJ = 25 °C 8.65 9 9.35 V
∆VO (1) Line regulation
VI = 10.6 to 25 V, IO = 500 mA, TJ = 25 °C 12 90 mV
VI = 11 to 17 V 15 90 mV
VI = 11 to 17 V, TJ = 25 °C 5 45 mV
VI = 11.4 to 23 V, TJ = 25 °C 12 90 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25 °C 4.3 6 mA
6 mA
∆IqQuiescent current change
VI = 11 to 25 V, IO = 500 mA 0.8 mA
VI = 10.6 to 23 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz, IO = 500 mA 61 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B =10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 18 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -0.8 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 9/55
VI = 19 V, IO = 1 A, TJ = 0 to 125 °C (L7812AC), TJ = -40 to 125 °C (L7812AB), unless otherwise specified.
Table 7. Electrical characteristics of L7812A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 11.75 12 12.25 V
VOOutput voltage IO = 5 mA to 1 A, VI = 14.8 to 25 V 11.5 12 12.5 V
VOOutput voltage IO = 1 A, VI = 25 to 27 V, TJ = 25 °C 11.5 12 12.5 V
∆VO (1) Line regulation
VI = 14.8 to 30 V, IO = 500 mA, TJ = 25 °C 13 120 mV
VI = 16 to 12 V 16 120 mV
VI = 16 to 12 V, TJ = 25 °C 6 60 mV
VI = 14.5 to 27 V, TJ = 25 °C 13 120 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25 °C 4.4 6 mA
6 mA
DIqQuiescent current change
VI = 15 to 30 V, IO = 500 mA 0.8 mA
VI = 14.8 to 27 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 15 to 25 V, f = 120 Hz, IO = 500 mA 60 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B = 10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 18 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -1 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 10/55
VI = 23 V, IO = 1 A, TJ = 0 to 125 °C (L7815AC), TJ = -40 to 125 °C (L7815AB), unless otherwise specified.
Table 8. Electrical characteristics of L7815A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 14.7 15 15.3 V
VOOutput voltage IO = 5 mA to 1 A, VI = 17.9 to 28 V 14.4 15 15.6 V
VOOutput voltage IO = 1 A, VI = 28 to 30 V, TJ = 25 °C 14.4 15 15.6 V
∆VO (1) Line regulation
VI = 17.9 to 30 V, IO = 500 mA, TJ = 25 °C 13 150 mV
VI = 20 to 26 V 16 150 mV
VI = 20 to 26 V, TJ = 25 °C 6 75 mV
VI = 17.5 to 30 V, TJ = 25 °C 13 150 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25 °C 4.4 6 mA
6 mA
∆IqQuiescent current change
VI = 17.5 to 30 V, IO = 500 mA 0.8 mA
VI = 17.5 to 30 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 18.5 to 28.5 V, f = 120 Hz, IO = 500 mA 58 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B = 10Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 19 mΩ
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -1 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 11/55
VI = 33 V, IO = 1 A, TJ = 0 to 125 °C (L7824AC), TJ = -40 to 125 °C (L7824AB), unless otherwise specified.
Table 9. Electrical characteristics of L7824A
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 23.5 24 24.5 V
VOOutput voltage IO = 5 mA to 1 A, VI = 27.3 to 37 V 23 24 25 V
VOOutput voltage IO = 1 A, VI = 37 to 38 V, TJ = 25 °C 23 24 25 V
∆VO (1) Line regulation
VI = 27 to 38 V, IO = 500 mA, TJ = 25 °C 31 240 mV
VI = 30 to 36 V 35 200 mV
VI = 30 to 36 V, TJ = 25 °C 14 120 mV
VI = 26.7 to 38 V, TJ = 25 °C 31 240 mV
∆VO (1) Load regulation
IO = 5 mA to 1 A 25 100
mV
IO = 5 mA to 1.5 A, TJ = 25 °C 30 100
IO = 250 to 750 mA 10 50
IqQuiescent current
TJ = 25 °C 4.6 6 mA
6 mA
∆IqQuiescent current change
VI = 27.3 to 38 V, IO = 500 mA 0.8 mA
VI = 27.3 to 38 V, TJ = 25 °C 0.8 mA
IO = 5 mA to 1 A 0.5 mA
SVR Supply voltage rejection VI = 28 to 38 V, f = 120 Hz, IO = 500 mA 54 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
eN Output noise voltage TA = 25 °C, B = 10 Hz to 100 kHz 10 µV/VO
ROOutput resistance f = 1 kHz 20 m
Isc Short circuit current VI = 35 V, TA = 25 °C 0.2 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
∆VO/∆T Output voltage drift -1.5 mV/°C
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 12/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 10 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 10. Electrical characteristics of L7805C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 4.8 5 5.2 V
VOOutput voltage IO = 5 mA to 1 A, VI = 7 to 18 V 4.75 5 5.25 V
VOOutput voltage IO = 1 A, VI = 18 to 20V, TJ = 25 °C 4.75 5 5.25 V
∆VO (1) Line regulation
VI = 7 to 25 V, TJ = 25 °C 3 100
mV
VI = 8 to 12 V, TJ = 25 °C 1 50
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 100
mV
IO = 250 to 750 mA, TJ = 25 °C 50
IdQuiescent current TJ = 25° C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 7 to 23 V 0.8
∆VO/∆T Output voltage drift IO = 5 mA -1.1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 40 µV/VO
SVR Supply voltage rejection VI = 8 to 18 V, f = 120 Hz 62 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 17 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.75 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 13/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 11 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 11. Electrical characteristics of L7806C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 5.75 6 6.25 V
VOOutput voltage IO = 5 mA to 1 A, VI = 8 to 19 V 5.7 6 6.3 V
VOOutput voltage IO = 1 A, VI = 19 to 21 V, TJ = 25 °C 5.7 6 6.3 V
∆VO (1) Line regulation
VI = 8 to 25 V, TJ = 25 °C 120
mV
VI = 9 to 13 V, TJ = 25 °C 60
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 120
mV
IO = 250 to 750 mA, TJ = 25 °C 60
IdQuiescent current TJ = 25 °C 8 mA
DIdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 8 to 24 V 1.3
∆VO/∆T Output voltage drift IO = 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 45 µV/VO
SVR Supply voltage rejection VI = 9 to 19 V, f = 120 Hz 59 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 19 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.55 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 14/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 12. Electrical characteristics of L7808C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 7.7 8 8.3 V
VOOutput voltage IO = 5 mA to 1 A, VI = 10.5 to 21 V 7.6 8 8.4 V
VOOutput voltage IO = 1 A, VI = 21 to 25 V, TJ = 25 °C 7.6 8 8.4 V
∆VO (1) Line regulation
VI = 10.5 to 25 V, TJ = 25 °C 160
mV
VI = 11 to 17 V, TJ = 25 °C 80
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 160
mV
IO = 250 to 750 mA, TJ = 25 °C 80
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 10.5 to 25 V 1
∆VO/∆T Output voltage drift IO = 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 52 µV/VO
SVR Supply voltage rejection VI = 11.5 to 21.5 V, f = 120 Hz 56 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 16 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.45 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 15/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 14.5 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 13. Electrical characteristics of L7885C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 8.2 8.5 8.8 V
VOOutput voltage IO = 5 mA to 1 A, VI = 11 to 21.5 V 8.1 8.5 8.9 V
VOOutput voltage IO = 1 A, VI = 21.5 to 26 V, TJ = 25 °C 8.1 8.5 8.9 V
∆VO (1) Line regulation
VI = 11 to 27 V, TJ = 25 °C 160
mV
VI = 11.5 to 17.5 V, TJ = 25 °C 80
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 160
mV
IO = 250 to 750 mA, TJ = 25 °C 80
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 11 to 26 V 1
∆VO/∆T Output voltage drift IO = 5 mA -0.8 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 55 µV/VO
SVR Supply voltage rejection VI = 12 to 22 V, f = 120 Hz 56 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 16 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.45 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 16/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 15 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 14. Electrical characteristics of L7809C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 8.64 9 9.36 V
VOOutput voltage IO = 5 mA to 1 A, VI = 11.5 to 22 V 8.55 9 9.45 V
VOOutput voltage IO = 1 A, VI = 22 to 26 V, TJ = 25 °C 8.55 9 9.45 V
∆VO (1) Line regulation
VI = 11.5 to 26 V, TJ = 25 °C 180
mV
VI = 12 to 18 V, TJ = 25 °C 90
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 180
mV
IO = 250 to 750 mA, TJ = 25 °C 90
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 11.5 to 26 V 1
∆VO/∆T Output voltage drift IO = 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 70 µV/VO
SVR Supply voltage rejection VI = 12 to 23 V, f = 120 Hz 55 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 17 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.40 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 17/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 19 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 15. Electrical characteristics of L7812C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 11.5 12 12.5 V
VOOutput voltage IO = 5 mA to 1 A, VI = 14.5 to 25 V 11.4 12 12.6 V
VOOutput voltage IO = 1 A, VI = 25 to 27 V, TJ = 25 °C 11.4 12 12.6 V
∆VO (1) Line regulation
VI = 14.5 to 30 V, TJ = 25 °C 240
mV
VI = 16 to 22 V, TJ = 25 °C 120
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 240
mV
IO = 250 to 750 mA, TJ = 25 °C 120
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 14.5 to 30 V 1
∆VO/∆T Output voltage drift IO = 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 75 µV/VO
SVR Supply voltage rejection VI = 15 to 25 V, f = 120 Hz 55 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 18 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.35 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 18/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 16. Electrical characteristics of L7815C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 14.4 15 15.6 V
VOOutput voltage IO = 5 mA to 1 A, VI = 17.5 to 28 V 14.25 15 15.75 V
VOOutput voltage IO = 1 A, VI = 28 to 30 V, TJ = 25 °C 14.25 15 15.75 V
∆VO (1) Line regulation
VI = 17.5 to 30 V, TJ = 25 °C 300
mV
VI = 20 to 26 V, TJ = 25 °C 150
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 300
mV
IO = 250 to 750 mA, TJ = 25 °C 150
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1A 0.5
mA
VI = 17.5 to 30 V 1
∆VO/∆T Output voltage drift IO = 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100kHz, TJ = 25 °C 90 µV/VO
SVR Supply voltage rejection VI = 18.5 to 28.5 V, f = 120 Hz 54 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 19 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.23 A
Iscp Short circuit peak current TJ = 25 °C 2.2 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 19/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 26 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 17. Electrical characteristics of L7818C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 17.3 18 18.7 V
VOOutput voltage IO = 5 mA to 1 A, VI = 21 to 31 V 17.1 18 18.9 V
VOOutput voltage IO = 1 A, VI = 31 to 33 V, TJ = 25 °C 17.1 18 18.9 V
∆VO (1) Line regulation
VI = 21 to 33 V, TJ = 25 °C 360
mV
VI = 24 to 30 V, TJ = 25 °C 180
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 360
mV
IO = 250 to 750 mA, TJ = 25 °C 180
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 21 to 33 V 1
∆VO/∆T Output voltage drift IO = 5 mA -1 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 110 µV/VO
SVR Supply voltage rejection VI = 22 to 32 V, f = 120 Hz 53 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 22 mΩ
Isc Short circuit current VI = 35 V, TJ = 25 °C 0.20 A
Iscp Short circuit peak current TJ = 25 °C 2.1 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 20/55
Refer to the test circuits, TJ = 0 to 125 °C, VI = 33 V, IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise
specified.
Table 18. Electrical characteristics of L7824C
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage TJ = 25 °C 23 24 25 V
VOOutput voltage IO = 5 mA to 1 A, VI = 27 to 37 V 22.8 24 25.2 V
VOOutput voltage IO = 1 A, VI = 37 to 38 V, TJ = 25 °C 22.8 24 25.2 V
∆VO (1) Line regulation
VI = 27 to 38 V, TJ = 25 °C 480
mV
VI = 30 to 36 V, TJ = 25 °C 240
∆VO (1) Load regulation
IO = 5 mA to 1.5 A, TJ = 25 °C 480
mV
IO = 250 to 750 mA, TJ = 25 °C 240
IdQuiescent current TJ = 25 °C 8 mA
∆IdQuiescent current change
IO = 5 mA to 1 A 0.5
mA
VI = 27 to 38 V 1
∆VO/∆T Output voltage drift IO = 5 mA -1.5 mV/°C
eN Output noise voltage B = 10 Hz to 100 kHz, TJ = 25 °C 170 µV/VO
SVR Supply voltage rejection VI = 28 to 38 V, f = 120 Hz 50 dB
VdDropout voltage IO = 1 A, TJ = 25 °C 2 V
ROOutput resistance f = 1 kHz 28 mΩ
Isc Short circuit current VI = 35 V, TJ = 25° C 0.15 A
Iscp Short circuit peak current TJ = 25 °C 2.1 A
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating
effects must be taken into account separately. Pulse testing with low duty cycle is used.
Note: Minimum load current for regulation is 5 mA.
L78
Electrical characteristics
DS0422 - Rev 36 page 21/55
c.:033pF (2) L78 (1) cszszso Arco:oon
6Application information
6.1 Design consideration
The L78 Series of fixed voltage regulators are designed with thermal overload protection that shuts down the
circuit when subjected to an excessive power overload condition, internal short-circuit protection that limits the
maximum current the circuit will pass, and output transistor safe-area compensation that reduces the output short-
circuit current as the voltage across the pass transistor is increased. In many low current applications,
compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with
capacitor if the regulator is connected to the power supply filter with long lengths, or if the output load capacitance
is large. An input bypass capacitor should be selected to provide good high frequency characteristics to insure
stable operation under all load conditions. A 0.33 µF or larger tantalum, mylar or other capacitor having low
internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the
shortest possible leads directly across the regulators input terminals. Normally good construction techniques
should be used to minimize ground loops and lead resistance drops since the regulator has no external sense
lead.
The addition of an operational amplifier allows adjustment to higher or intermediate values while retaining
regulation characteristics. The minimum voltage obtained with the arrangement is 2 V greater than the regulator
voltage.
The circuit of Figure 14. High current voltage regulator can be modified to provide supply protection against short
circuit by adding a short circuit sense resistor, RSC, and an additional PNP transistor. The current sensing PNP
must be able to handle the short circuit current of the three terminal regulator Therefore a four ampere plastic
power transistor is specified.
Figure 9. Fixed output regulator
GAMG220920161007MT
1. Although no output capacitor is need for stability, it does improve transient response.
2. Required if regulator is located an appreciable distance from power supply filter.
L78
Application information
DS0422 - Rev 36 page 22/55
V‘ 0 L78 7, U R‘ Vxx ,, Id 0.33m ¢ 0.1m? 1“ RL mm VI 077 L78 Va 7, Vxx E R1 ’7 d 0.33% { 0.1m ERZ V L7805 o = 0.33% i LSW _ 0.1}JF +4>U1om _, cszsm
Figure 10. Current regulator
IO= VXX/R1+Id
GAMG220920161008MT
Figure 11. Circuit for increasing output voltage
IR1 5 Id
VO = VXX(1+R 2/R1)+ I dR2
GAMG220920161009MT
Figure 12. Adjustable output regulator (7 to 30 V)
GAMG220920161010MT
L78
Design consideration
DS0422 - Rev 36 page 23/55
1sv<> :: Lsm R1 0‘1“: r7v<><717v +="" r2="" 110m="" 01="" e0536="" v0="" ,,="" csmm="" r="" v‘="" a="" 0‘="" \g="" 02="" ri="" l78="" 0%="" m="" q1="BD534" w="" 0.33m="" o‘mf="" ,,="" 02:2n6124="" ,,="" cszsm="">
Figure 13. 0.5 to 10 V regulator
V
O
=V
XX
R
4
/R
1
GAMG220920161011MT
Figure 14. High current voltage regulator
R1
IO
= I REG + Q1
(I REG _
V
____
BEQ1
_)
VBEQ1
R1 = ______________
IREQ
-(I Q1/bQ1)
GAMG220920161012MT
Figure 15. High output current with short circuit protection
RSC = VBEQ2/ISC
GAMG220920161013MT
L78
Design consideration
DS0422 - Rev 36 page 24/55
V‘ V0 + 2. L78 i W 0.1 F 4.7m common 0'35” T u U COMMON 7 LSIAI + |:|4.7Kfl v‘ K Vo _ ZNSIZA _ +zov o L7815 o +15v __ __ ; 1N4001 033 F 0.1 F H H 0‘) 7, 2,2,": 1m 7 7, —20v 0 L7915 0 —15V 0525410
Figure 16. Tracking voltage regulator
GAMG220920161014MT
Figure 17. Split power supply (± 15 V - 1 A)
GAMG220920161015MT
Note: * Against potential latch-up problems.
L78
Design consideration
DS0422 - Rev 36 page 25/55
Figure 18. Negative output voltage circuit
GAMG220920161016MT
Figure 19. Switching regulator
GAMG220920161017MT
Figure 20. High input voltage circuit (configuration 1)
VIN = VI - (VZ + VBE)
GAMG220920161018MT
L78
Design consideration
DS0422 - Rev 36 page 26/55
vIN V‘ 0 L78 0 v0 Lfi f V2 2: O‘SSpF 0.1m :: ,, m V‘ V‘" L78 ya a : 0.35m my; : n V1! “‘1 I? Vm vo W 0—: L75 _’ ‘o :* \ Rl. MSW i 0.1 [.JF T
Figure 21. High input voltage circuit (configuration 2)
GAMG220920161019MT
Figure 22. High input and output voltage
VO = VXX + VZ1
GAMG220920161020MT
Figure 23. Reducing power dissipation with dropping resistor
V -V -V
R = __I(mi
___
n)
____
XX
___
DRO
____
P(max)
____
IO(max)+Id(max)
GAMG220920161021MT
L78
Design consideration
DS0422 - Rev 36 page 27/55
VI c Q' L78 a V0 RI H 053;”: 0.1pF :: R2 __ mm RS him 02 V0 VI 0 L78 40 Va Vxx , :: 0.33pF 4‘ }—° Modulafion ] sen AU Sanal r—I Vw 0— L75 aclss
Figure 24. Remote shutdown
GAMG220920161022MT
Figure 25. Power AM modulator (unity voltage gain, IO ≤ 0.5)
GAMG220920161023MT
Note: The circuit performs well up to 100 kHz.
Figure 26. Adjustable output voltage with temperature compensation
VO = VXX (1+R2/R1) + VBE
GAMG220920161024MT
Note: Q2 is connected as a diode in order to compensate the variation of the Q1 VBE with the temperature. C allows a
slow rise time of the VO.
L78
Design consideration
DS0422 - Rev 36 page 28/55
viO— L78 samu L78
Figure 27. Light controllers (VO(min) = VXX + VBE)
VO rises when the light goes up
VO falls when the light goes up
GAMG220920161025MT
Figure 28. Protection against input short-circuit with high capacitance loads
GAMG220920161026MT
Note: Application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see
Figure 23. Reducing power dissipation with dropping resistor) to protect the device against input short circuit. In
this case the input voltage falls rapidly while the output voltage decrease slowly. The capacitance discharges by
means of the base-emitter junction of the series pass transistor in the regulator. If the energy is sufficiently high,
the transistor may be destroyed. The external diode by-passes the current from the IC to ground.
L78
Design consideration
DS0422 - Rev 36 page 29/55
/// / //l // 1'
7Typical performance
Figure 29. Dropout voltage vs junction temperature
VI-Vo
(V)
-75
2
-50 -25 0 25 50 75 100 125 Tj (°C)
L78XX
GAMG200920161325MT
0
1.5
1
0.5
IO = 1 A
I = 500 mA
I = 200 mA
I = 20 mA
I = 0 mA
VO = 5% of VO
DROPOUT CONDITIONS
O
O
O
O
Figure 30. Peak output current vs input/output differential
voltage
Io(A)
0
2.5
2
5 10 15 20 25 Vi-VO (V)
L7805
GAMG200920161324MT
1.5
1
0.5
Tj = 55 °C
Tj = 0 °C
Tj = 125 °C
Tj = 150 °C
Tj = 25 °C
Figure 31. Supply voltage rejection vs frequency
Vi = 8 V to 18 V
Vo = 5 V
Tj = 25 °C
Io = 500 mA
L7805
SVR
(dB)
20
0
10 102103104f (Hz)
GAMG200920161322MT
40
60
80
Figure 32. Output voltage vs junction temperature
Vo
(V)
-75
12.1
12.0
-50 -25 0 25 50 75 100 125 Tj (°C)
Vi = 19 V
Vo = 12 V
Io = 20 mA
L7812
GAMG200920161323MT
11.9
11.8
L78
Typical performance
DS0422 - Rev 36 page 30/55
Figure 33. Output impedance vs frequency
Vi = 10 V
Vo = 5 V
Tamb = 25 °C
CL = 0 µF
L7805
Io = 20 mA
Io = 500 mA
Zo
(Ω)
10
1
10-1
10-2
10 102103104105f (Hz)
GAMG200920161320MT
Figure 34. Quiescent current vs junction temp.
Id
(mA)
-75
4.4
4.2
4.0
3.8
3.6
-50 -25 0 25 50 75 100 125 Tj (°C)
Vi = 10 V
Vo = 5 V
Io = 500 mA
L7805
GAMG200920161321MT
Figure 35. Load transient response
Vo
(V)
0
1
10 20 30 40 T (µs)
Vi = 10 V
Vo = 5 V
L7805
GAMG200920161326MT
0
-1
LOAD CURRENT
AUTPUT VOLTAGE
DEVIATION
50
Figure 36. Line transient response
Vo
(mV)
02468 T (µs)
IO = 500 mA
Vo = 5 V
L7805
GAMG200920161328MT
0
-20
OUTPUT VOLTAGE
DEVIATION
10
-10
10
20
Vi
(V)
15
10
5
0
INPUT VOLTAGE
Figure 37. Quiescent current vs. input voltage
Id(mA)
510 15 20 25 Vi (V)
VO = 5 V
Io = 20 mA
L7805
GAMG200920161329MT
3.0
30
4.0
5.0
Tj = 25 °C
L78
Typical performance
DS0422 - Rev 36 page 31/55
8Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK®
packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions
and product status are available at: www.st.com. ECOPACK® is an ST trademark.
L78
Package information
DS0422 - Rev 36 page 32/55
A 0P "GATE" ‘ E F Nofes 9—10 {m/K o T : - H1 \ J ¢ _ I D 01 ‘ L20 i ?\v S ”0 “d:— \ I A x \ O 1710(3) J L I _—_J]
8.1 TO-220 (dual gauge) package information
Figure 38. TO-220 (dual gauge) package outline
0015988_21_Type A
L78
TO-220 (dual gauge) package information
DS0422 - Rev 36 page 33/55
Table 19. TO-220 (dual gauge) mechanical data
Dim.
mm
Min. Typ. Max.
A 4.40 4.60
b 0.61 0.88
b1 1.14 1.70
c 0.48 0.70
D 15.25 15.75
D1 1.27
E 10 10.40
e 2.40 2.70
e1 4.95 5.15
F 1.23 1.32
H1 6.20 6.60
J1 2.40 2.72
L 13 14
L1 3.50 3.93
L20 16.40
L30 28.90
P 3.75 3.85
Q 2.65 2.95
L78
TO-220 (dual gauge) package information
DS0422 - Rev 36 page 34/55
¢F L20 7 Gate Noie 9*10 b1 (x3) e1 L1 L30 H1 b (x3) V J1
8.2 TO-220 (single gauge) package information
Figure 39. TO-220 (single gauge) package outline
8174627_5
L78
TO-220 (single gauge) package information
DS0422 - Rev 36 page 35/55
Table 20. TO-220 (single gauge) mechanical data
Dim.
mm
Min. Typ. Max.
A 4.40 4.60
b 0.61 0.88
b1 1.14 1.70
c 0.48 0.70
D 15.25 15.75
E 10.00 10.40
e 2.40 2.70
e1 4.95 5.15
F 0.51 0.60
H1 6.20 6.60
J1 2.40 2.72
L 13.00 14.00
L1 3.50 3.93
L20 16.40
L30 28.90
P 3.75 3.85
Q 2.65 2.95
L78
TO-220 (single gauge) package information
DS0422 - Rev 36 page 36/55
L7 +9 1 @LG} L2 L3
8.3 TO-220FP type A package information
Figure 40. TO-220FP package outline
7012510_type_A
L78
TO-220FP type A package information
DS0422 - Rev 36 page 37/55
a E §V @“EI GE ‘53 e: 3 I N ”“ , L @ 3 cf]: 1 3 6 _ n® me
Table 21. TO-220FP package mechanical data
Dim.
mm
Min. Typ. Max.
A 4.4 4.6
B 2.5 2.7
D 2.5 2.75
E 0.45 0.7
F 0.75 1
F1 1.15 1.70
F2 1.15 1.70
G 4.95 5.2
G1 2.4 2.7
H 10 10.4
L2 16
L3 28.6 30.6
L4 9.8 10.6
L5 2.9 3.6
L6 15.9 16.4
L7 9 9.3
Dia 3 3.2
8.4 TO-220 (single/dual) packing information
Figure 41. Tube for TO-220 (dual gauge) (mm.)
L78
TO-220 (single/dual) packing information
DS0422 - Rev 36 page 38/55
m y 4.2:: mm m: PA .y- ' wt“ “4:” u h " as am , m WT + I u Inn 2 m z :gcmN A4 m2 _ THERMAL PAD c2 7 km ._ 51* L2 SEAN/VG PLANE sz HUGE PLANE
Figure 42. Tube for TO-220 (single gauge) (mm.)
8.5 DPAK package information
Figure 43. DPAK package outline
0068772_A_21
L78
DPAK package information
DS0422 - Rev 36 page 39/55
Table 22. DPAK mechanical data
Dim.
mm
Min. Typ. Max.
A 2.20 2.40
A1 0.90 1.10
A2 0.03 0.23
b 0.64 0.90
b4 5.20 5.40
c 0.45 0.60
c2 0.48 0.60
D 6.00 6.20
D1 5.10
E 6.40 6.60
E1 4.70
e 2.28
e1 4.40 4.60
H 9.35 10.10
L 1.00 1.50
(L1) 2.80
L2 0.80
L4 0.60 1.00
R 0.20
V2 0°
L78
DPAK package information
DS0422 - Rev 36 page 40/55
51 TBMm 28 15 4 572
Figure 44. DPAK recommended footprint (dimensions are in mm)
Footprint_0068772
L78
DPAK package information
DS0422 - Rev 36 page 41/55
I??? \ \ E 1/2. L7 H , L2 T . b 4,797+ | | ._el+ J1 THERMAL PAD b2 SE4 TING PLANE —> COPLANARI TY A I GAUGE PLANE
8.6 D²PAK (SMD 2L STD-ST) type A package information
Figure 45. D²PAK (SMD 2L STD-ST) type A package outline
L78
D²PAK (SMD 2L STD-ST) type A package information
DS0422 - Rev 36 page 42/55
Table 23. D²PAK (SMD 2L STD-ST) mechanical data
Dim.
mm
Min. Typ. Max.
A 4.40 4.60
A1 0.03 0.23
b 0.70 0.93
b2 1.14 1.70
c 0.45 0.60
c2 1.23 1.36
D 8.95 9.35
D1 7.50 7.75 8.00
D2 1.10 1.30 1.50
E 10 10.40
E1 8.50 8.70 8.90
E2 6.85 7.05 7.25
e 2.54
e1 4.88 5.28
H 15 15.85
J1 2.49 2.69
L 2.29 2.79
L1 1.27 1.40
L2 1.30 1.75
R 0.4
V2 0°
L78
D²PAK (SMD 2L STD-ST) type A package information
DS0422 - Rev 36 page 43/55
L7 A El E 5 C2 E7 7:)7 E I L2 {6) W 2x 192 2* ”l_-E PLA TING b7, b3 BASE METAL (b, b2) c7 A7 GAUGE PLANE \7 L4 L5
8.7 D²PAK (ASE) type B package information
Figure 46. D²PAK (ASE subcon) type B package outline
0079457_23_type B
L78
D²PAK (ASE) type B package information
DS0422 - Rev 36 page 44/55
Table 24. D²PAK (ASE) type B mechanical data
Dim.
mm
Min. Typ. Max.
A 4.36 4.56
A1 0 0.25
b 0.70 0.90
b1 0.51 0.89
b2 1.17 1.37
b3 1.36 1.46
c 0.38 0.694
c1 0.38 0.534
c2 1.19 1.34
D 8.60 9.00
D1 6.90 7.50
E 10.15 10.55
E1 8.10 8.70
e 2.54
H 15.00 15.60
L 1.90 2.50
L1 1.65
L2 1.78
L3 0.25
L4 4.78 5.28
L78
D²PAK (ASE) type B package information
DS0422 - Rev 36 page 45/55
- 77,7 4. 76.9 7,6 3.5 2.54 5. 08
Figure 47. D²PAK recommended footprint (dimensions are in mm)
Footprint_0079457
L78
D²PAK (ASE) type B package information
DS0422 - Rev 36 page 46/55
Ia mm; (umulmwe In‘erante on law +1702 mm m D 32 OOO®®OOO®OO A F w 5' O G) G) )9 ® 3 Fm mad‘ine ref, only M, P‘ m Indudmgdlafland rad" (omenmz Mound an —> Immmmmeed Q § § 9 Q 9 9 9 9 9 l l l w ‘ ‘ A I I I I I I ’ aenqu IadIus usenlmmmofleed AMOBBSZVI
8.8 D²PAK and DPAK packing information
Figure 48. Tape outline
L78
D²PAK and DPAK packing information
DS0422 - Rev 36 page 47/55
Fun radius; ,—_\_‘_l_/’ 40mm 7“ access al s‘ot
Figure 49. Reel outline
A
D
B
Full radius
Tape slot
in core for
tape start
2.5mm min.width
G measured
at hub
C
N
40mm min.
access hole
at slot location
T
AM06038v1
Table 25. D²PAK tape and reel mechanical data
Tape Reel
Dim.
mm
Dim.
mm
Min. Max. Min. Max.
A0 10.5 10.7 A 330
B0 15.7 15.9 B 1.5
D 1.5 1.6 C 12.8 13.2
D1 1.59 1.61 D 20.2
E 1.65 1.85 G 24.4 26.4
F 11.4 11.6 N 100
K0 4.8 5.0 T 30.4
P0 3.9 4.1
P1 11.9 12.1 Base quantity 1000
P2 1.9 2.1 Bulk quantity 1000
R 50
T 0.25 0.35
W 23.7 24.3
L78
D²PAK and DPAK packing information
DS0422 - Rev 36 page 48/55
Table 26. DPAK tape and reel mechanical data
Tape Reel
Dim.
mm
Dim.
mm
Min. Max. Min. Max.
A0 6.8 7 A 330
B0 10.4 10.6 B 1.5
B1 12.1 C 12.8 13.2
D 1.5 1.6 D 20.2
D1 1.5 G 16.4 18.4
E 1.65 1.85 N 50
F 7.4 7.6 T 22.4
K0 2.55 2.75
P0 3.9 4.1 Base qty. 2500
P1 7.9 8.1 Bulk qty. 2500
P2 1.9 2.1
R 40
T 0.25 0.35
W 15.7 16.3
L78
D²PAK and DPAK packing information
DS0422 - Rev 36 page 49/55
9Ordering information
Table 27. Order codes
Part number
Order codes
TO-220
(single gauge)
TO-220
(dual gauge) DPAK D²PAK TO-220FP Output voltages
L7805C L7805CV L7805CV-DG L7805CDT-TR L7805CD2T-TR L7805CP 5 V
L7805AB L7805ABV L7805ABV-DG L7805ABD2T-TR L7805ABP 5 V
L7805AC L7805ACV L7805ACV-DG L7805ACD2T-TR L7805ACP 5 V
L7806C L7806CV L7806CV-DG L7806CD2T-TR 6 V
L7806AB L7806ABV L7806ABV-DG L7806ABD2T-TR 6 V
L7806AC L7806ACV L7806ACV-DG 6 V
L7808C L7808CV L7808CV-DG L7808CD2T-TR 8 V
L7808AB L7808ABV L7808ABV-DG L7808ABD2T-TR 8 V
L7808AC L7808ACV L7808ACV-DG 8 V
L7885C L7885CV 8.5 V
L7809C L7809CV L7809CV-DG L7809CD2T-TR L7809CP 9 V
L7809AB L7809ABV L7809ABV-DG L7809ABD2T-TR 9 V
L7809AC L7809ACV 9 V
L7812C L7812CV L7812CV-DG L7812CD2T-TR L7812CP 12 V
L7812AB L7812ABV L7812ABV-DG L7812ABD2T-TR 12 V
L7812AC L7812ACV L7812ACV-DG L7812ACD2T-TR 12 V
L7815C L7815CV L7815CV-DG L7815CD2T-TR L7815CP 15 V
L7815AB L7815ABV L7815ABV-DG L7815ABD2T-TR 15 V
L7815AC L7815ACV L7815ACV-DG L7815ACD2T-TR 15 V
L7818C L7818CV L7818CV-DG 18 V
L7824C L7824CV L7824CV-DG L7824CD2T-TR L7824CP 24 V
L7824AB L7824ABV L7824ABV-DG 24 V
L7824AC L7824ACV L7824ACV-DG 24 V
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Ordering information
DS0422 - Rev 36 page 50/55
Revision history
Table 28. Document revision history
Date Revision Changes
21-Jun-2004 12 Document updating.
03-Aug-2006 13 Order codes has been updated and new template.
19-Jan-2007 14 D²PAK mechanical data has been updated and add footprint data.
31-May-2007 15 Order codes has been updated.
29-Aug-2007 16 Added Table 1 in cover page.
11-Dec-2007 17 Modified: Table 27.
06-Feb-2008 18 Added: TO-220 mechanical data Figure 38 on page 38 , Figure 39 on page 39, and Table 23 on
page 37. Modified: Table 27 on page 58.
18-Mar-2008 19 Added: Table 29: DPAK mechanical data on page 50, Table 30: Tape and reel DPAK mechanical
data on page 52. Modified: Table 27 on page 58.
26-Jan-2010 20 Modified Table 1 on page 1 and Table 23 on page 37, added: Figure 38 on page 38 and Figure 39
on page 39, Figure 40 on page 45 and Figure 41 on page 45.
04-Mar-2010 21 Added notes Figure 38 on page 38.
08-Sep-2010 22 Modified Table 27 on page 58.
23-Nov-2010 23 Added: TJ = 25 °C test condition in DVO on Table 3, 4, 5, 6, 7, 8 and Table 9.
16-Sep-2011 24 Modified title on page 1.
30-Nov-2011 25 Added: order codes L7805CV-DG, L7806CV-DG, L7808ABV-DG, L7812CV-DG and L7815CV-DG
Table 27 on page 58.
08-Feb-2012 26 Added: order codes L7805ACV-DG, L7805ABV-DG, L7806ABV-DG, L7808CV-DG, L7809CV-DG,
L7812ACV-DG, L7818CV-DG, L7824CV-DG Table 27 on page 58.
27-Mar-2012 27 Added: order codes L7812ABV-DG, L7815ABV-DG Table 27 on page 58.
27-Apr-2012 28 Modified: VI = 10.4 to 23 V ==> VI = 11.4 to 23 V test conditon value Line regulation Table 6 on
page 13.
10-May-2012 29 Added: order codes L7806ACV-DG, L7808ACV-DG, L7815ACV-DG, L7824ABV-DG and
L7824ACV-DG Table 27 on page 58.
19-Sep-2012 30 Modified load regulation units from V to mV in Table 3 to Table 9.
12-Mar-2013 31 Modified: VO output voltage at 25 °C min. value 14.4 V Table 16 on page 23.
04-Mar-2014 32
Part numbers L78xx, L78xxC, L78xxAB, L78xxAC changed to L78.
Removed TO-3 package.
Updated the description in cover page, Section 2: Pin configuration, Section 3: Maximum ratings,
Section 4: Test circuits, Section 5: Electrical characteristics, Section 6: Application information,
Section 8: Package information and Table 27: Order codes.
Added Section 9: Packaging mechanical data.
Minor text changes.
26-Feb-2016 33 Updated Section 8: Package information.
Minor text changes.
28-Nov-2016 34 Updated Section 9: "Ordering information".
Minor text changes.
25-May-2018 35 Updated D²PAK package Section 8.7 D²PAK (ASE) type B package information.
17-Sep-2018 36 Updated Figure 29. Dropout voltage vs junction temperature.
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DS0422 - Rev 36 page 51/55
Contents
1Diagram ...........................................................................2
2Pin configuration ..................................................................3
3Maximum ratings ..................................................................4
4Test circuits .......................................................................5
5Electrical characteristics...........................................................6
6Application information...........................................................22
6.1 Design consideration ..........................................................22
7Typical performance ..............................................................30
8Package information..............................................................32
8.1 TO-220 (dual gauge) package information.........................................32
8.2 TO-220 (single gauge) package information .......................................34
8.3 TO-220FP package information .................................................36
8.4 TO-220 packing information.....................................................38
8.5 DPAK package information .....................................................39
8.6 D²PAK (SMD 2L STD-ST) type A package information ..............................41
8.7 D²PAK (ASE subcon) type B package information ..................................43
8.8 D²PAK and DPAK packing information ............................................46
9Ordering information .............................................................50
Revision history .......................................................................51
Contents ..............................................................................52
List of tables ..........................................................................53
List of figures..........................................................................54
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Contents
DS0422 - Rev 36 page 52/55
List of tables
Table 1. Absolute maximum ratings .............................................................4
Table 2. Thermal data.......................................................................4
Table 3. Electrical characteristics of L7805A .......................................................6
Table 4. Electrical characteristics of L7806A .......................................................7
Table 5. Electrical characteristics of L7808A .......................................................8
Table 6. Electrical characteristics of L7809A .......................................................9
Table 7. Electrical characteristics of L7812A ...................................................... 10
Table 8. Electrical characteristics of L7815A ...................................................... 11
Table 9. Electrical characteristics of L7824A ...................................................... 12
Table 10. Electrical characteristics of L7805C ...................................................... 13
Table 11. Electrical characteristics of L7806C ...................................................... 14
Table 12. Electrical characteristics of L7808C ...................................................... 15
Table 13. Electrical characteristics of L7885C ...................................................... 16
Table 14. Electrical characteristics of L7809C ...................................................... 17
Table 15. Electrical characteristics of L7812C ...................................................... 18
Table 16. Electrical characteristics of L7815C ...................................................... 19
Table 17. Electrical characteristics of L7818C ...................................................... 20
Table 18. Electrical characteristics of L7824C ...................................................... 21
Table 19. TO-220 (dual gauge) mechanical data .................................................... 34
Table 20. TO-220 (single gauge) mechanical data ................................................... 36
Table 21. TO-220FP package mechanical data ..................................................... 38
Table 22. DPAK mechanical data ............................................................... 40
Table 23. D²PAK (SMD 2L STD-ST) mechanical data ................................................. 43
Table 24. D²PAK (ASE) type B mechanical data..................................................... 45
Table 25. D²PAK tape and reel mechanical data..................................................... 48
Table 26. DPAK tape and reel mechanical data ..................................................... 49
Table 27. Order codes ...................................................................... 50
Table 28. Document revision history ............................................................. 51
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List of tables
DS0422 - Rev 36 page 53/55
List of figures
Figure 2. Block diagram ....................................................................2
Figure 3. Pin connections (top view) ............................................................3
Figure 4. Schematic diagram .................................................................3
Figure 5. Application circuits .................................................................4
Figure 6. DC parameter.....................................................................5
Figure 7. Load regulation....................................................................5
Figure 8. Ripple rejection....................................................................5
Figure 9. Fixed output regulator .............................................................. 22
Figure 10. Current regulator ................................................................. 23
Figure 11. Circuit for increasing output voltage..................................................... 23
Figure 12. Adjustable output regulator (7 to 30 V)................................................... 23
Figure 13. 0.5 to 10 V regulator ............................................................... 24
Figure 14. High current voltage regulator......................................................... 24
Figure 15. High output current with short circuit protection ............................................. 24
Figure 16. Tracking voltage regulator ........................................................... 25
Figure 17. Split power supply (± 15 V - 1 A) ....................................................... 25
Figure 18. Negative output voltage circuit ........................................................ 26
Figure 19. Switching regulator ................................................................ 26
Figure 20. High input voltage circuit (configuration 1) ................................................ 26
Figure 21. High input voltage circuit (configuration 2) ................................................ 27
Figure 22. High input and output voltage ......................................................... 27
Figure 23. Reducing power dissipation with dropping resistor........................................... 27
Figure 24. Remote shutdown ................................................................. 28
Figure 25. Power AM modulator (unity voltage gain, IO ≤ 0.5)........................................... 28
Figure 26. Adjustable output voltage with temperature compensation ..................................... 28
Figure 27. Light controllers (VO(min) = VXX + VBE)................................................... 29
Figure 28. Protection against input short-circuit with high capacitance loads ................................ 29
Figure 29. Dropout voltage vs junction temperature ................................................. 30
Figure 30. Peak output current vs input/output differential voltage........................................ 30
Figure 31. Supply voltage rejection vs frequency ................................................... 30
Figure 32. Output voltage vs junction temperature .................................................. 30
Figure 33. Output impedance vs frequency ....................................................... 31
Figure 34. Quiescent current vs junction temp...................................................... 31
Figure 35. Load transient response ............................................................ 31
Figure 36. Line transient response ............................................................. 31
Figure 37. Quiescent current vs. input voltage ..................................................... 31
Figure 38. TO-220 (dual gauge) package outline ................................................... 33
Figure 39. TO-220 (single gauge) package outline .................................................. 35
Figure 40. TO-220FP package outline........................................................... 37
Figure 41. Tube for TO-220 (dual gauge) (mm.) .................................................... 38
Figure 42. Tube for TO-220 (single gauge) (mm.) ................................................... 39
Figure 43. DPAK package outline .............................................................. 39
Figure 44. DPAK recommended footprint (dimensions are in mm)........................................ 41
Figure 45. D²PAK (SMD 2L STD-ST) type A package outline ........................................... 42
Figure 46. D²PAK (ASE subcon) type B package outline .............................................. 44
Figure 47. D²PAK recommended footprint (dimensions are in mm) ....................................... 46
Figure 48. Tape outline ..................................................................... 47
Figure 49. Reel outline ..................................................................... 48
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List of figures
DS0422 - Rev 36 page 54/55
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DS0422 - Rev 36 page 55/55

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