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PMP23591

20VIN to 60VIN, 600W, automotive two-phase buck converter with GaN switches reference design

PMP23591

Design files

Overview

This reference design generates a regulated 12V output from a nominal 48V input. This design can handle up to 50A max current and 25A max current per phase. The LM5137F-Q1 controller provides switching signals to the LMG2100R026 half-bridge Gallium Nitride (GaN) field-effect transistor (FET) with an integrated gate driver.

Features
  • High current for body electronics and lighting applications
  • Peak conversion efficiency of 95% to 97% in 36V to 60V input voltage range
  • LM5137F-Q1 provides two-phase control and a gate driver in a single integrated circuit
  • GaN switches with top-side cooling and heatsink
  • Input electromagnetic interference (EMI) filter
Output voltage options PMP23591.1
Vin (Min) (V) 20
Vin (Max) (V) 60
Vout (Nom) (V) 12
Iout (Max) (A) 50
Output Power (W) 600
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase
Automotive
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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
TIDT447.PDF (1603 K)

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

SLVRBP7.PDF (390 K)

Detailed schematic diagram for design layout and components

SLVRBQ1.PDF (130 K)

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

SLVRBP9.PDF (567 K)

Detailed overview of design layout for component placement

SLVRBQ0.ZIP (3281 K)

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

SLVC873.ZIP (4550 K)

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

SLVRBP8.PDF (2618 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

LM5137F-Q1Automotive, 80V, 100% duty cycle, dual-channel, functional safety synchronous buck controller

Data sheet: PDF | HTML
Gallium nitride (GaN) power stages

LMG2100R026100V 2.6mΩ half-bridge gallium nitride (GaN) power stage

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 20VIN to 60VIN, 600W, Automotive Two-Phase Buck Converter With GaN Switches Reference Design PDF | HTML Jun. 24, 2025

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