PMP31431

48V to 24V GaN buck converter industrial power supply reference design

PMP31431

Design files

Overview

This reference design is designed for high efficiency and small form factor. The design showcases the LMG708B0 Gallium Nitride (GaN) synchronous buck converter and operates over an input voltage range of 44V to 52V to deliver a 24V at 9.5A output. The design uses a printed circuit board with less than 34.6cm2, which can be used to drive a 200W humanoid robot hand demo from a 48V battery.

Features
  • Peak efficiency of 97.7%
  • Adjustable current limit
  • Forced pulse width modulation (PWM) or diode emulation
  • Current monitoring
  • Integrated GaN field effect transistor (FET)
Output voltage options PMP31431.1
Vin (Min) (V) 44
Vin (Max) (V) 52
Vout (Nom) (V) 24
Iout (Max) (A) 9.5
Output Power (W) 228
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
SLVT244.PDF (1286 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLVMEX4.PDF (215 KB)

Detailed overview of design layout for component placement

SLVMEX7.PDF (221 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

SLVMEX6.ZIP (1644 KB)

Files used for 3D models or 2D drawings of IC components

SLVC951.ZIP (197 KB)

Design file that contains information on physical board layer of design PCB

SLVMEX8.PDF (701 KB)

PCB layer plot file used for generating PCB design layout

SLVMEX5.PDF (318 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

DC/DC converters

LMG708B05V to 80V, 20A synchronous step-down converter with integrated GaN FETs for ultra-high efficiency

Data sheet: PDF | HTML
Comparators

TLV3401Single nano power high-voltage comparator with open-drain output

Data sheet: PDF | HTML

Technical documentation

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Top documentation Type Title Format options Date
* Test report 48V to 24V GaN Buck Converter Industrial Power Supply Reference Design PDF | HTML Mar 25, 2026

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