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TPS56A37

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4.5V to 28V input, 10A synchronous buck converter

Product details

Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.6 Vout (max) (V) 13 Iout (max) (A) 10 Iq (typ) (mA) 0.045 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.6 Vout (max) (V) 13 Iout (max) (A) 10 Iq (typ) (mA) 0.045 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Adjustable, Synchronous Rectification Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP3 Duty cycle (max) (%) 98 Type Converter
VQFN-HR (RPA) 10 9 mm² 3 x 3
  • 4.5V to 28V input voltage range
  • 0.6V to 13V output voltage range
  • Supports 10A continuous output current
  • Integrated 19.4mΩ and 8.5mΩ MOSFETs
  • 0.6V ±1% reference voltage at 25°C
  • 45uA low quiescent current
  • D-CAP3™ control mode for fast transient response
  • Eco-mode (auto-skip mode) for high light-load efficiency
  • Fixed 500kHz switching frequency
  • Cycle by cycle over current limit

  • Adjustable soft-start time with default 1.8ms
  • Built-in output discharge function
  • Power-good indicator to monitor output voltage
  • Supports up to 98% duty operation
  • Non-latched protections for UV, OV, OT, and UVLO
  • –40°C to +150°C operating junction temperature
  • Small 10-pin 3.0mm × 3.0mm HotRod™ QFN package
  • Pin-to-pin compatible with 6A TPS56637 and 8A TPS56837
  • 4.5V to 28V input voltage range
  • 0.6V to 13V output voltage range
  • Supports 10A continuous output current
  • Integrated 19.4mΩ and 8.5mΩ MOSFETs
  • 0.6V ±1% reference voltage at 25°C
  • 45uA low quiescent current
  • D-CAP3™ control mode for fast transient response
  • Eco-mode (auto-skip mode) for high light-load efficiency
  • Fixed 500kHz switching frequency
  • Cycle by cycle over current limit

  • Adjustable soft-start time with default 1.8ms
  • Built-in output discharge function
  • Power-good indicator to monitor output voltage
  • Supports up to 98% duty operation
  • Non-latched protections for UV, OV, OT, and UVLO
  • –40°C to +150°C operating junction temperature
  • Small 10-pin 3.0mm × 3.0mm HotRod™ QFN package
  • Pin-to-pin compatible with 6A TPS56637 and 8A TPS56837

The TPS56A37 is a high-efficiency, easy-to-use, synchronous buck converter with a wide input voltage range of 4.5V to 28V. The device supports up to 10A continuous output current at output voltages between 0.6V and 13V.

The TPS56A37 uses D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC.

The TPS56A37 operates at Eco-mode to attain high efficiency at light load with fixed 500kHz switching frequency. The TPS56A37 has adjustable soft-start time by connecting the SS capacitor and with default 1.8ms with the SS pin floating.

The TPS56A37 provides complete non-latched OV (overvoltage), UV (undervoltage), OC (overcurrent), OT (overtemperature), and UVLO (undervoltage lockout) protections combined with power-good indicator and output discharge function features.

The TPS56A37 is available in a 10-pin, 3.0mm × 3.0mm HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.

The TPS56A37 is a high-efficiency, easy-to-use, synchronous buck converter with a wide input voltage range of 4.5V to 28V. The device supports up to 10A continuous output current at output voltages between 0.6V and 13V.

The TPS56A37 uses D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC.

The TPS56A37 operates at Eco-mode to attain high efficiency at light load with fixed 500kHz switching frequency. The TPS56A37 has adjustable soft-start time by connecting the SS capacitor and with default 1.8ms with the SS pin floating.

The TPS56A37 provides complete non-latched OV (overvoltage), UV (undervoltage), OC (overcurrent), OT (overtemperature), and UVLO (undervoltage lockout) protections combined with power-good indicator and output discharge function features.

The TPS56A37 is available in a 10-pin, 3.0mm × 3.0mm HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.

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Technical documentation

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* Data sheet TPS56A37 4.5V to 28V Input, 10A, Synchronous Buck Converter datasheet PDF | HTML 11 Jan 2024
EVM User's guide TPS56A37 Step-Down Converter Evaluation Module User's Guide PDF | HTML 11 Dec 2023

Design & development

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Evaluation board

TPS56A37EVM — TPS56A37 evaluation module

The TPS56A37 is a high-efficiency high-voltage-input easy-to-use synchronous buck converter. With the wide operating input voltage range of 4.5V to 28V, the TPS56A37 is designed for systems powered from 12V, 19V, 24V power-bus rails. The device supports up to 10A continuous output current. The (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS56A37 PSpice Transient Model

SLVME26.ZIP (204 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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VQFN-HR (RPA) 10 View options

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