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TPS56837H
  • TPS56837H
  • TPS56837H

TPS56837H

ACTIVE

4.5V to 28V input, 8A synchronous buck converter with output voltage range supporting USB-C

Texas Instruments TPS56837H Product Info

1 April 2026 5

Parameters

Rating

Catalog

Topology

Buck

Iout (max) (A)

8

Vin (max) (V)

28

Vin (min) (V)

4.5

Vout (max) (V)

22

Vout (min) (V)

4

Features

Adjustable soft start, Enable, Forced PWM, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Synchronous rectification

Control mode

D-CAP3

Operating temperature range (°C)

-40 to 150

Iq (typ) (A)

0.000045

Duty cycle (max) (%)

98

Package

VQFN-HR (RPA)-10-9 mm² 3 x 3

Features

  • Support for USB power delivery (USB PD)
    • 4.5V to 28V input voltage range
    • 4V to 22V output voltage range
    • Supports 8A continuous output current
    • Three adjustable cycle-by-cycle over current limit for low-side MOSFET by mode selection
  • High efficiency over entire load range
    • Integrated 20.4mΩ and 9.5mΩ MOSFETs
    • 45uA low quiescent current
    • Fixed 500kHz switching frequency
    • 98.7% efficiency at VIN = 24V, VOUT = 20V and IOUT = 3A
    • Eco-mode for high light-load efficiency
  • 0.6V ±1% reference voltage at 25°C
  • D-CAP3™ control mode for fast transient response
  • Adjustable soft-start time by SS capacitor
  • TPS56837H supports 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
  • Support for USB power delivery (USB PD)
    • 4.5V to 28V input voltage range
    • 4V to 22V output voltage range
    • Supports 8A continuous output current
    • Three adjustable cycle-by-cycle over current limit for low-side MOSFET by mode selection
  • High efficiency over entire load range
    • Integrated 20.4mΩ and 9.5mΩ MOSFETs
    • 45uA low quiescent current
    • Fixed 500kHz switching frequency
    • 98.7% efficiency at VIN = 24V, VOUT = 20V and IOUT = 3A
    • Eco-mode for high light-load efficiency
  • 0.6V ±1% reference voltage at 25°C
  • D-CAP3™ control mode for fast transient response
  • Adjustable soft-start time by SS capacitor
  • TPS56837H supports 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

Description

The TPS56837H and TPS56837HA are high-efficiency, easy-to-use, synchronous buck converters with wide input voltage range of 4.5V to 28V. The devices support up to 8A continuous output current at output voltages between 4V and 22V, and support 5V, 9V, 15V, 20V dynamic output change for USB Power Delivery (USB PD) application.

The TPS56837H and TPS56837HA use D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and support low equivalent series resistance (ESR) output capacitors like MLCC.

The TPS56837H and TPS56837HA operate at Eco-mode to attain high efficiency at light load with fixed 500kHz switching frequency and three selectable current limit through MODE pin configuration. The TPS56837H and TPS56837HA have adjustable soft-start time by the SS pin capacitor configuration.

The TPS56837H and TPS56837HA provide complete non-latched OV, UV, OC, OT, and UVLO protections combined with power-good indicator features. TPS56837H supports output discharge function and TPS56837HA disables the function.

The TPS56837H and TPS56837HA are 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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