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reference designLM251772 | Demoboard LM251772EVM-PD

Texas Instruments LM251772 | Demoboard LM251772EVM-PD

36V-VIN four-switch buck-boost controller with I²C for USB-PD sourcing

Overview

TopologyBuck-Boost Converter
Input voltage9-36 V
Switching frequency100-600 kHz
Output 148 V / 5 A
Output 228 V / 5 A
IC revisionMarch 2025

Description

The LM251772EVM-PD demonstrates a flexible high-power buck-boost design using the LM251772. The evaluation module (EVM) is configured to operate from an input voltage range of 9V to 36V and to produce a regulated 5V to 48V output with up to a 5A load current. The EVM operates with a switching frequency of 320kHz. Most of the device settings are easily adjusted or set through jumpers, like: operation mode (PSM or fPWM), bias supply, and external clock synchronization.

Features

Input voltage range: 9V to 36VOutput voltage 5V to 48V (5V default, adjustable 5V to 48V) with up to 5A (240W)High efficiency, synchronous buck-boost conversionEasy access to configuration featuresFlexible design using standard MOSFETs

Typical applications

  • Industrial PC and rugged PC
  • Wireless charging
  • USB Type-C® power delivery – Docking station, PC monitor, Desktop PC
  • DC/DC Modules

More information

Parts approved by Texas Instruments

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Operating Temperature
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61300211121
SPECWR-PHD Pin Header - Single, 2, Straight
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins2 
TypeStraight 
MountTHT 
Length5.08 mm
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability
61300311121
SPECWR-PHD Pin Header - Single, 3, Straight
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins3 
TypeStraight 
MountTHT 
Length7.62 mm
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability
61300511121
SPECWR-PHD Pin Header - Single, 5, Straight
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins5 
TypeStraight 
MountTHT 
Length12.7 mm
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability
61300611121
SPECWR-PHD Pin Header - Single, 6, Straight

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Pins6 
TypeStraight 
MountTHT 
Length15.24 mm
Rated Current3 A
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability