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PMP23611

48VIN, 300W automotive two-phase buck converter with GaN half-bridge power stage reference design

PMP23611

Design files

Overview

This reference design offers power for automotive advanced driver assistance systems (ADAS), infotainment, and cluster applications. Operation is over the full automotive range up to 60V. The design exhibits a peak conversion efficiency of 92% to 96% in the 20VIN to 60VIN range with high power density at 2700mm2. The results demonstrate information to validate the design in terms of stability, thermal response, efficiency ranging across all input voltages and load requirements. It also shows overshoot and undershoot results of about 5% during a 25% to 75% load transient event and a 50% to 100% load transient event.

Features
  • High current for advanced driver assistance systems (ADAS), infotainment, and cluster applications
  • Peak conversion efficiency of 92% to 96% in the 20VIN to 60VIN range
  • LM5137F-Q1 provides Automotive Safety Integrity Level D (ASILD) functional safety qualification
  • LMG2100 provides an integrated Gallium Nitride (GaN) half-bridge power stage to allow for increased power density
Output voltage options PMP23611.1
Vin (Min) (V) 20
Vin (Max) (V) 60
Vout (Nom) (V) 48
Iout (Max) (A) 50
Output Power (W) 2400
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase
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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
SLVT221.PDF (1309 K)

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

SLVRBQ7.PDF (389 K)

Detailed schematic diagram for design layout and components

SLVRBR0.PDF (130 K)

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

SLURB34.PDF (556 K)

Detailed overview of design layout for component placement

SLVRBQ9.ZIP (4162 K)

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

SLVC875.ZIP (4505 K)

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

SLVRBQ8.PDF (1902 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

LMG2100R044100-V 4.4-mΩ half-bridge GaN FET with integrated driver and protection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 48VIN, 300W Automotive Two-Phase Buck Converter With GaN Half-Bridge Power Stage Reference Design PDF | HTML Jun. 25, 2025

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