LM251772Q1EVM-PD

LM251772-Q1 evaluation module

LM251772Q1EVM-PD

Overview

The LM251772Q1EVM-PD demonstrates a flexible high power buck-boost design using the LM251772-Q1. The evaluation module 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
  • Wide input voltage range
  • Ultra high (> 95%) peak power conversion efficiency
  • Adjustable output voltage using feedback resistor divider or I2C interface
  • Optional synchronization (SYNC)
  • Easy configuration of current monitor or limiter
  • Support for cable drop compensation
DC/DC controllers
LM251772-Q1 Automotive, 36V, 4-switch buck-boost controller with I2C interface for USB-PD
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Order & start development

Calculation tool

LM251772-QUICKSTART-CALC — LM251772 BuckBoost Quickstart Calculator Tool

Supported products & hardware

Supported products & hardware

Products
DC/DC controllers
LM251772 36V-VIN four-switch buck-boost controller with I²C for USB-PD sourcing LM251772-Q1 Automotive, 36V, 4-switch buck-boost controller with I2C interface for USB-PD
Hardware development
Evaluation board
LM251772EVM-PD LM251772 evaluation module LM251772Q1EVM-PD LM251772-Q1 evaluation module
Download options

LM251772-QUICKSTART-CALC LM251772 BuckBoost Quickstart Calculator Tool

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Version: 1.0.1
Release date: Dec 19, 2024
Products
DC/DC controllers
LM251772 36V-VIN four-switch buck-boost controller with I²C for USB-PD sourcing LM251772-Q1 Automotive, 36V, 4-switch buck-boost controller with I2C interface for USB-PD
Hardware development
Evaluation board
LM251772EVM-PD LM251772 evaluation module LM251772Q1EVM-PD LM251772-Q1 evaluation module

Release Information

The LM251772 BuckBoost Quickstart Calculator tool supports you defining the power stage using the LM251772 and to select the required external components.

What's new

  • Removed not available references to CFG1, CFG3, CFG4
Certification

LM251772Q1EVM-PD-DOC-CERT — LM251772Q1EVM-PD EU Declaration of Conformity (DoC)

Supported products & hardware

Supported products & hardware

Hardware development
Evaluation board
LM251772Q1EVM-PD LM251772-Q1 evaluation module
Download options

LM251772Q1EVM-PD-DOC-CERT LM251772Q1EVM-PD EU Declaration of Conformity (DoC)

close
Version: 1.0
Release date: Feb 27, 2026
Hardware development
Evaluation board
LM251772Q1EVM-PD LM251772-Q1 evaluation module

Release Information

LM251772Q1EVM-PD EU Declaration of Conformity (DoC)

GUI for evaluation module (EVM)

LM251772-CONFIGURATON-GUI — LM251772 GUI for configuration via I2C

Supported products & hardware

Supported products & hardware

Products
DC/DC controllers
LM251772 36V-VIN four-switch buck-boost controller with I²C for USB-PD sourcing LM251772-Q1 Automotive, 36V, 4-switch buck-boost controller with I2C interface for USB-PD
Hardware development
Evaluation board
LM251772EVM-PD LM251772 evaluation module LM251772Q1EVM-PD LM251772-Q1 evaluation module
Launch Download options

LM251772-CONFIGURATON-GUI LM251772 GUI for configuration via I2C

close
Version: 1.1.0
Release date: Jul 8, 2025
Products
DC/DC controllers
LM251772 36V-VIN four-switch buck-boost controller with I²C for USB-PD sourcing LM251772-Q1 Automotive, 36V, 4-switch buck-boost controller with I2C interface for USB-PD
Hardware development
Evaluation board
LM251772EVM-PD LM251772 evaluation module LM251772Q1EVM-PD LM251772-Q1 evaluation module

Release Information

LM251772EVM GUI

Graphical User Interface (GUI) to configure the LM251772 via I2C.

You can use the Launch button for using the GUI online in a browser or the download file for your operating system to run the GUI offline.

What's new

  • added missing control elements for uSleep
  • added control for DIV20 for VOUT setting
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Top documentation Type Title Format options Date
* EVM User's guide LM251772-Q1 Buck-Boost Controller Evaluation Module User's Guide PDF | HTML Jan 21, 2026

Support & training

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