ADP5073CP-EVALZ, ADP5074CP-EVALZ Guide Datasheet by Analog Devices Inc.

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ANALOG DEVICES mm m '3) my (an "’ stow
ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide
UG-1157
One Technology Way P. O. Box 9106 Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 www.analog.com
Evaluating the ADP5073/ADP5074 DC-to-DC Switching Regulators
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 8
FEATURES
Input voltage range: 3 V to 13.2 V
Output voltage: 5 V
Output current
ADP5073CP-EVALZ: 300 mA
ADP5074CP-EVALZ: 600 mA
Demonstrates compact 18 mm × 14 mm layout
EVALUATION KIT CONTENTS
ADP5073CP-EVALZ or ADP5074CP-EVALZ evaluation board
ADDITIONAL EQUIPMENT NEEDED
DC power supply
Multimeters for voltage and current measurements
Electronic or resistive loads
GENERAL DESCRIPTION
The ADP5073CP-E VA L Z and ADP5074CP-E VA L Z evaluation
boards demonstrate the functionality of the ADP5073 and
ADP5074 dc-to-dc regulators, respectively.
Use either board to evaluate simple device measurements, such
as line regulation, load regulation, and efficiency. Device features
such as selectable operating frequency, soft start, and slew rate
control can also be evaluated. The evaluation boards accept
input voltages that are within tolerance of the standard 3.3 V
and 12.0 V dc levels.
For more details about the dc-to-dc regulators, refer to the
ADP5073 and ADP5074 data sheets, which must be consulted
in conjunction with this user guide when using these evaluation
boards.
Note that this user guide covers both the ADP5073CP-E VA L Z
and the ADP5074CP-E VA L Z evaluation boards, but the data
presented were gathered using the ADP5073CP-E VA L Z .
EVALUATION BOARD PHOTOGRAPH
16037-001
Figure 1. ADP5073/ADP5074 Evaluation Board
UG-1157 ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide
Rev. 0 | Page 2 of 8
TABLE OF CONTENTS
Features .............................................................................................. 1
Evaluation Kit Contents ................................................................... 1
Additional Equipment Needed ....................................................... 1
General Description ......................................................................... 1
Evaluation Board Photograph ......................................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware ............................................................ 3
Evaluation Board Configurations .............................................. 3
Output Voltage Measurements ........................................................4
Line Regulation ..............................................................................5
Load Regulation ............................................................................5
Efficiency ........................................................................................5
Evaluation Board Schematics...........................................................6
Ordering Information .......................................................................7
Bill of Materials ..............................................................................7
REVISION HISTORY
9/2017Revision 0: Initial Version
a an SHE/Mfr)“ ANALOG DEVICES wagon/HAD am am:
ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide UG-1157
Rev. 0 | Page 3 of 8
EVALUATION BOARD HARDWARE
EVALUATION BOARD CONFIGURATIONS
The ADP5073CP-EVALZ and the ADP5074CP-EVALZ
evaluation boards are configured to provide a −5 V output
from a +3 V to +13.2 V input.
Table 2 and Table 3 in the Ordering Information section of this
user guide list the components for both the ADP5073CP-EVALZ
and ADP5074CP-EVALZ boards, respectively.
The board allows the end user to customize the design. Refer to
the ADP5073 and ADP5074 data sheets or to the corresponding
ADIsimPower tool to obtain alternative component values.
Figure 2 shows the board features available to the user.
POWE
R
OUTPUT POWE
R
INPUT
GND GND–+
ENABLE PROTECTION
PROVIDES SUITABLE ENABLE
VOLTAGE, V_EN, ACROSS VIN
RANGE (IN COMBINATION WITH R1,
R2 AND CR2); FOR EFFICIENCY
MEASUREMENT, DISCONNECT
V_EN AND THEN PROVIDE AN
EXTERNAL ENABLE SIGNAL
SLEW RATE
SLOW =AGND
NORMAL = VREG
FAST = NO CONNECT
POWER GOOD
THIS PIN IS AN OPEN-DRAIN, POWER-
GOOD INDICATOR AND IS PULLED UP
T
O THE ON-BOARD ENABLE VOLTAGE,
V_EN, BY THE PG RESISTOR RPG.
SWITCHING FREQUENCY
EXTERNAL CLOCK CAN BE
CONNECTED TO CENTER PIN
(5.5V MAXIMUM)
SOFT START
R
SS
CONTROLS SOFT START RATE;
REMOVE JUMPER TO DISCONNECT
RESISTOR
ENABLE
EXTERNAL ENABLE SIGNAL
CAN BE CONNECTED TO
CENTER PIN (5.5V MAXIMUM)
16037-002
Figure 2. Outline of ADP5073/ADP5074 Evaluation Board Features
Table 1. ADP5073CP-EVALZ/ADP5074CP-EVALZ Function Descriptions
Jumper/Connector
Mnemonic Description
VIN Power Supply to the ADP5073/ADP5074. In the default configuration, this ranges from 3 V to 13.2 V.
VOUT Output from the ADP5073/ADP5074. VOUT is −5 V in default configuration.
V_EN Provides a clamped enable voltage to allow operation using input voltages higher than 5.5 V, without damaging
the EN pin. For efficiency measurements, remove this jumper and provide an enable signal from an external supply.
EN Precision Enable. The EN pin is compared to an internal precision reference to enable the inverting regulator
output. Connect this jumper to the on position to turn on the regulator. Connect this jumper to the off position or
remove this jumper to turn the regulator off (an internal pull down is present in the ADP5073/ADP5074). An
external enable can be connected to the center pin with a voltage from 1.2 V to 5.5 V.
SYNC/FREQ Synchronization Input and Frequency Setting. To set the switching frequency to 2.4 MHz, pull the SYNC/FREQ pin high.
To set the switching frequency to 1.2 MHz, pull the SYNC/FREQ pin low. To synchronize the switching frequency,
connect the SYNC/FREQ pin to an external clock (5.5 V maximum).
SLEW Driver Stage Slew Rate Control. The SLEW pin sets the slew rate for the SW pin driver. For the fastest slew rate (best
efficiency), leave the SLEW pin open. For a normal slew rate, connect the SLEW pin to VREG. For the slowest slew
rate (best electromagnetic interference (EMI) performance), connect the SLEW pin to GND.
SS Soft Start Programming. Leave the SS pin open to obtain the fastest soft start time. To program a slower soft start
time, connect this jumper. This jumper connects the RSS resistor between the SS pin and GND.
PG Power-Good Output. This pin is an open-drain, power-good indicator and is pulled up to the on-board enable
voltage, V_EN, by the RPG resistor.
n _ m [Ncl
UG-1157 ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide
Rev. 0 | Page 4 of 8
OUTPUT VOLTAGE MEASUREMENTS
For basic output voltage accuracy measurements, connect the
evaluation board to a voltage source and a voltmeter. Use a
resistor as the load for the regulator.
Ensure that the resistor has an adequate power rating to handle
the expected power dissipation. Use an electronic load as an
alternative. Ensure that the voltage source supplies enough
current for the expected load levels, taking into account the
device efficiency.
Follow these steps to connect to a voltage source and voltmeter:
1. Connect the negative (−) terminal of the voltage source to
the GND terminal of the power input connector.
2. Connect the positive (+) terminal of the voltage source to
the VIN terminal of the power input connector.
3. Connect a load between the VOUT terminal and GND
terminal at the output connector.
4. Connect the voltmeter across the output terminal and
ground in parallel with the load resistor.
Turn the voltage source on and move the EN jumper to the on
position.
If the load current is large, the user must connect the voltmeter as
close as possible to the output capacitor to reduce the effects of
voltage drops due to the printed circuit board (PCB) trace
impedance.
If long power leads are used from the power supply, especially at
higher loads, connect a large capacitor (10 μF or more) across
the VIN terminals to prevent losses from lead inductance. Measure
the input voltage at these terminals or use a power supply with a
4-wire supply and sense arrangement.
Keep power leads short when performing any output voltage
measurements.
VOLTAGE SOURCE
– +
+
VOLTMETER
–5V
16037-009
Figure 3. Output Voltage Measurement
ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide UG-1157
Rev. 0 | Page 5 of 8
LINE REGULATION
For line regulation measurements, monitor the regulator output
while its input is varied. For good line regulation, the output
should change very little with varying input levels. It is possible
to repeat this measurement under different load conditions.
Figure 4 and Figure 5 show the typical line regulation performance
of the ADP5073.
16037-003
–0.50
–0.40
–0.30
–0.20
–0.10
0
0.10
0.20
0.30
0.40
0.50
3.00 3.50 4.00 4.50 5.00 5.50
VARIATION IN OUTPUT VOLTAGE
FROM NOMINAL (%)
INPUT VOLTAGE (V)
I
OUT
= 440mA
I
OUT
= 250mA
I
OUT
= 100mA
I
OUT
= 0mA
Figure 4. ADP5073 Line Regulation, VNEG = −5 V, fSW = 1.2 MHz, TA = 25°C
16037-004
–0.50
–0.40
–0.30
–0.20
–0.10
0
0.10
0.20
0.30
0.40
0.50
3.00 3.50 4.00 4.50 5.00 5.50
VARIATION IN OUTPUT VOLTAGE
FROM NOMINAL (%)
INPUT VOLTAGE (V)
I
OUT
= 440mA
I
OUT
= 250mA
I
OUT
= 100mA
I
OUT
= 0mA
Figure 5. ADP5073 Line Regulation, VNEG = −5 V, fSW = 2.4 MHz, TA = 25°C
LOAD REGULATION
For load regulation measurements, monitor the regulator output
while the load is varied. For good load regulation, the output
should change very little with varying loads. The input voltage must
be held constant during this measurement. Figure 6 shows the
typical load regulation performance of the ADP5073.
Figure 6. ADP5073 Load Regulation, VNEG = −5 V, TA = 25°C
EFFICIENCY
For efficiency measurements, monitor the regulator input and
output while the load is varied. The input voltage must be held
constant during this measurement. Connect ammeters in series
with the input and output. Connect voltmeters to the PCB side of
the ammeter and measure the voltage across the input and output
terminals. For the best results, measure the voltage across the
input and output capacitors. If possible, particularly at low current,
trigger the meters simultaneously and set to average readings for a
period of a few hundred milliseconds or more. Averaging the
readings removes the switching ripple and skip mode effects.
Figure 7 shows the typical efficiency curves of ADP5073. Note
that, to remove the impact to the efficiency of the divider
resistors for the EN voltage, remove the V_EN jumper and the
EN jumper and provide an enable signal to the EN pin from an
external supply.
16037-006
0
10
20
30
40
50
60
70
80
90
0.001 0.01 0.1 1
EFFICIENCY (%)
LOAD CURRENT (A)
V
IN
= 3V,
fSW
= 1.2MHz
V
IN
= 3V,
fSW
= 2.4MHz
V
IN
= 5.5V,
fSW
= 1.2MHz
V
IN
= 5.5V,
fSW
= 2.4MHz
Figure 7. ADP5073 Efficiency vs. Load Current, VNEG = −5 V, TA = 25°C
UG-1157 ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide
Rev. 0 | Page 6 of 8
EVALUATION BOARD SCHEMATICS
16037-007
SOFT START TIME
REMOVE JUMPER FOR DEFAULT
SYNC SELECT
SLEW RATE SELECT
VNEG ENABLE
DC - DC CONVERTER
6.8UH
MMSZ5233B-7-F
49.9K
158K
69157-102HLF
69157-102HLF
49.9K
14.3K
11K
75160-101-01LF
DNI
22-03-2031
22-03-2031 22-03-2031
75160-101-01LF
MC000044
MC000044
1.15MEG
3.3K
0.047UF
DFLS240-7
10UF
1UF
10UF
10UF
ADP5073ACPZ
DNI
1UF CR1
TP_SS
COUT
TP_VOUT COUT2
TP_VIN
TP_VREF
TP_FB
SS
V_EN
VOUT
TP_GND
GND2
VIN
R1
R2
RSS
TP_VREG
GND
TP_SLEW
TP_SYNC
TP_EN
TP_PG
EN
SLEW SYNC/FREQ
RPG
GND1
D1
RFB
RFT
RC
CC
U1
L1
PG
CIN
CVREF
CVREG
FB
V_EN
SYNC
SS
VIN
PG
EN
VREF
VIN
VREG
VREG
VIN
SS
EN
FB
SS
VREG
EN
SLEW SYNC
V_EN PG
GND GND
SLEW
PG
SLEW
COMP
VREG
VREFSYNC
1
10
C
4
5
8
6
7
9
2
1
2
1
1
1
1
2
2
1
A
1
1
3
2
1
3
2
1
3
2
1
16
2
13
14
PAD
1
3
15
11
121
GND
GND
GND
GND
GND
EPAD
NIC
NIC
NIC
AVIN
PVIN
VREG
GND
VREF
FB
COMP
EN
SS
SYNC/FREQ
PWRGD
SLEW
SW
GND
GND
GND
GND
Figure 8. Evaluation Board Schematic for the ADP5073
16037-008
DC - DC CONVERTER
SOFT START TIME
REMOVE JUMPER FOR DEFAULT
SYNC SELECT
SLEW RATE SELECT
VNEG ENABLE
1UF
SLEW
SYNC VREF
VREG
FB
SLEW
GNDGND
PG
V_EN
SYNC
SLEW
EN
VREG
SS
FB
SS
VREG VREG
VIN
VREF
EN
PG
VIN
SS
SYNC
V_EN
2
1
1
2
2
1
1
3
2
1 2
1
3
2
1
1
11
1
DNI
3
2
1
C
A
DNI
4
10
8
6
9
16
13
14
3
15
10UF
10UF
MMSZ5233B-7-F 22-03-2031
75160-101-01LF
75160-101-01LF
14.3K
11K
158K
49.9K
49.9K
22-03-2031
69157-102HLF
22-03-2031
MC000044
MC000044
69157-102HLF
RC
1.6K
CIN
COUT2
CR1
CVREF
D1
EN
GND
GND2
PG
R1
R2
RFB
RPG
RSS
SLEW
SS
SYNC/FREQ
TP_EN
TP_FB
TP_GND
TP_PG
TP_SLEW
TP_SS
TP_SYNC
TP_VIN
TP_VOUT
TP_VREF
TP_VREG
VIN
VOUT
V_EN
*
*
*
*
1
COMP 7
3.3UH
PAD
VIN
CC
0.082UF
GND1
RFT
1.15MEG
EN
1UF
CVREG
PG
2
L1
DFLS240-7
ADP5074ACPZ
5
112
11
U1
COUT
10UF
EPAD
NIC
NIC
NIC
AVIN
PVIN
VREG
GND
VREF
FB
COMP
EN
SS
SYNC/FREQ
PWRGD
SLEW
SW
GND
GND
GND GND
GND
GND
GND
GND
GND
Figure 9. Evaluation Board Schematic for the ADP5074
ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide UG-1157
Rev. 0 | Page 7 of 8
ORDERING INFORMATION
BILL OF MATERIALS
Table 2. ADP5073CP-EVALZ Evaluation Board Components
Component Package Description Value Tolerance Voltage Part Number Manufacturer
U1 16-lead
LFCSP
ADP5073 dc-to-dc
inverting regulator
ADP5073 Analog Devices,
Inc.
COUT 1210 Output capacitor 10 μF 10% 50 V GRM32ER71H106KA12L Murata
COUT2 1210 Output capacitor Not
installed
L1 Inverting regulator
inductor
6.8 μH 20% XAL5050-682MEB Coilcraft
D1 PowerDI123 Inverting regulator
Schottky diode
2 A 40 V DFLS240L-7 Diodes, Inc.
CC 0603 Inverting regulator
compensation capacitor
0.047 μF 10% 25 V CC0603KRX7R7BB473 Yageo
RC 0603 Inverting regulator
compensation resistor
3.3 1%
RFT 0805 Top feedback resistor 1.15 1%
RFB 0805 Bottom feedback
resistor
158 1%
RPG 0402 Power-good pull-up
resistor
49.9 1%
RSS 0402 Soft start programming
resistor
49.9 1%
CIN
1206
Input capacitor
10 μF
10%
25 V
TMK316B7106KL-TD
Taiyo Yuden
CVREG 0603 Internal regulator
capacitor
1 μF 10% 10 V GRM188R71A105KA61D Murata
CVREF 0603 Inverting regulator
reference output
capacitor
1 μF 10% 10 V GRM188R71A105KA61D Murata
R1 0603 Top resistor for enable
voltage divider
14.3 1%
R2 0603 Bottom resistor for
enable voltage divider
11 1%
CR1 SOD323 Zener diode for enable
voltage divider
6 V MMSZ5233BS-7-F Diodes, Inc.
Table 3‘ ADP5074CP7EVALZ Evaluafiun Board Components 12A ANALOG DEVICES www.3nalog.nnm
UG-1157 ADP5073CP-EVALZ/ADP5074CP-EVALZ User Guide
Rev. 0 | Page 8 of 8
Table 3. ADP5074CP-EVALZ Evaluation Board Components
Component Package Description Value Tolerance Voltage Part Number Manufacturer
U1 16-lead
LFCSP
ADP5074 dc-to-dc
inverting regulator
ADP5074 Analog Devices,
Inc.
COUT 1210 Output capacitor 10 μF 10% 50 V GRM32ER71H106KA12L Murata
COUT2 1210 Output capacitor Not
installed
L1 Inverting regulator
inductor
3.3 μH 20% XAL5030-332MEB Coilcraft
D1 PowerDI123 Inverting regulator
Schottky diode
2 A 40 V DFLS240L-7 Diodes, Inc.
CC
0603
Inverting regulator
compensation capacitor
0.082 μF
10%
16 V
0603YC823KAT2A
AVX
RC 0603 Inverting regulator
compensation resistor
1.6 1%
RFT 0805 Top feedback resistor 1.15 1%
RFB 0805 Bottom feedback
resistor
158 1%
RPG 0402 Power-good pull-up
resistor
49.9 kΩ 1%
RSS 0402 Soft start programming
resistor
49.9 kΩ 1%
CIN
1206
Input capacitor
10 μF
10%
25 V
TMK316B7106KL-TD
Taiyo Yuden
CVREG 0603 Internal regulator
capacitor
1 μF 10% 10 V GRM188R71A105KA61D Murata
CVREF 0603 Inverting regulator
reference output
capacitor
1 μF 10% 10 V GRM188R71A105KA61D Murata
R1 0603 Top resistor for enable
voltage divider
14.3 1%
R2 0603 Bottom resistor for
enable voltage divider
11 1%
CR1 SOD323 Zener diode for enable
voltage divider
6 V MMSZ5233BS-7-F Diodes, Inc.
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and const
rued in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
©2017 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG16037-0-9/17(0)

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