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TPS6281x-Q1 Automotive Adjustable Frequency Step-Down Converter

Texas Instruments' 2.75 V to 6 V DC/DC converters are available in a 2 mm x 3 mm wettable-flanks QFN package

Image of Texas Instruments' TPS62810-Q1 Automotive Step-Down ConverterTexas Instruments' TPS6281x-Q1 are pin-to-pin 1 A, 2 A, 3 A, and 4 A synchronous step-down DC/DC converters that offer high efficiency and ease-of-use. These converters are based on peak-current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. The low resistive switches allow up to 4 A continuous output current at a high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can be synchronized to an external clock in the same frequency range.

In PWM/PFM mode, the TPS6281x-Q1 automatically enters power-save mode at light loads to maintain high efficiency across the whole load range. The converters provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This allows external sequencing of different supply rails and limiting the inrush current during start-up. The TPS6281x-Q1 is available in a 3 mm x 2 mm VQFN package with wettable flanks.

Features
  • AEC-Q100 qualified for automotive applications:
    • Device temperature range Grade 1: -40°C to +125°C TA
  • Input voltage range: 2.75 V to 6 V
  • Current output: 1 A (TPS62811-Q1), 2 A (TPS62812-Q1), 3 A (TPS62813-Q1), or 4 A (TPS62810-Q1)
  • Quiescent current: 15 µA
  • Output voltage range: 0.6 V to 5.5 V
  • Output voltage accuracy: ±1% (PWM operation)
  • Adjustable soft-start
  • Adjustable switching frequency: 1.8 MHz to 4 MHz
  • Precise ENABLE input allows:
    • User-defined undervoltage lockout
    • Exact sequencing
  • Forced PWM or PWM and PFM operation
  • 100% duty-cycle mode
  • Active output discharge
  • Spread-spectrum clocking (optional)
  • Fold-back overcurrent protection (optional)
  • Power good output with a window comparator
  • Package with wettable flanks
Applications
  • Infotainment head units
  • Hybrid and reconfigurable clusters
  • Telematic control units
  • Surround-view ECUs
  • ADAS sensor fusion
  • External amps

TPS6281x-Q1 Automotive Step-Down Converters

ImageManufacturer Part NumberDescriptionVoltage - Output (Max)Available QuantityView Details
IC REG BUCK 6V 4A 2MM X 3MM QFNTPS6281020QWRWYRQ1IC REG BUCK 6V 4A 2MM X 3MM QFN5.5V0View Details
IC REG BUCK 6V 4A 2MM X 3MM QFNTPS62810QWRWYRQ1IC REG BUCK 6V 4A 2MM X 3MM QFN5.5V0View Details
IC POWER MANAGEMENTTPS62813QWRWYRQ1IC POWER MANAGEMENT5.5V0View Details
TPS6281220QWRWYRQ1 ORBEATPS6281220QWRWYRQ1TPS6281220QWRWYRQ1 ORBEA5.5V0View Details
TPS62811QWRWYRQ1ORBEATPS6281120QWRWYRQ1TPS62811QWRWYRQ1ORBEA5.5V0View Details
TPS628112AQWRWYRQ1 ORBEATPS628112AQWRWYRQ1TPS628112AQWRWYRQ1 ORBEA-0View Details
TPS628120MQWRWYRQ1 ORBEATPS628120MQWRWYRQ1TPS628120MQWRWYRQ1 ORBEA-0View Details
IC POWER MANAGEMENTTPS6281320QWRWYRQ1IC POWER MANAGEMENT5.5V0View Details
TPS6281008QWRWYRQ1 ORBEATPS6281008QWRWYRQ1TPS6281008QWRWYRQ1 ORBEA-2924 - ImmediateView Details
TPS6281208QWRWYRQ1 ORBEATPS6281208QWRWYRQ1TPS6281208QWRWYRQ1 ORBEA-6511 - ImmediateView Details
TPS628112MQWRWYRQ1 ORBEATPS628112MQWRWYRQ1TPS628112MQWRWYRQ1 ORBEA-0View Details
AUTOMOTIVE 2.75-V TO 6-V, 1-A STTPS6281126QWRWYRQ1AUTOMOTIVE 2.75-V TO 6-V, 1-A ST-0View Details
TPS628110AQWRWYRQ1 ORBEATPS628110AQWRWYRQ1TPS628110AQWRWYRQ1 ORBEA5.5V0View Details
TPS6281206QWRWYRQ1 ORBEATPS6281206QWRWYRQ1TPS6281206QWRWYRQ1 ORBEA-30 - ImmediateView Details
TPS62811QWRWYRQ1 ORBEATPS62811QWRWYRQ1TPS62811QWRWYRQ1 ORBEA5.5V0View Details
AUTOMOTIVE 2.75-V TO 6-V, 2-A STTPS6281228QWRWYRQ1AUTOMOTIVE 2.75-V TO 6-V, 2-A ST-3000 - ImmediateView Details
AUTOMOTIVE 2.75-V TO 6-V, 1-A STTPS6281109QWRWYRQ1AUTOMOTIVE 2.75-V TO 6-V, 1-A ST-3000 - ImmediateView Details
TPS62812QWRWYRQ1 ORBEATPS62812QWRWYRQ1TPS62812QWRWYRQ1 ORBEA5.5V0View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionPackagingPart StatusMain PurposeAvailable QuantityView Details
DEVELOPMENT POWER MANAGEMENTTPS62810EVM-015DEVELOPMENT POWER MANAGEMENTBulkActiveDC/DC, Step Down2 - Immediate
72 - Factory Stock
View Details
Updated: 2020-12-03
Published: 2019-08-28