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PMP21966

Automotive, 1.1-V, 60-A 3-phase synchronous buck reference design

PMP21966

Design files

Overview

This synchronous buck converter reference design was designed for a high current automotive engine control unit (ECU). This design combines the TPS59632-Q1, 24-V, 3-phase step-down driverless controller and state-of-the-art automotive DrMOS. Its compact size and high efficiency make it ideal for low-voltage, high-current rails in automotive applications.

Features
  • Automotive input range of 8 V to 18 V
  • 0.9 to 1.1 V and 60-A high current rail
  • Peak efficiency of 89.6% at 1 MHz
  • Compact size of 1.2" x 1.6"
  • Fast dynamic response
  • Excellent current sharing
Output voltage options PMP21966.1
Vin (Min) (V) 8
Vin (Max) (V) 18
Vout (Nom) (V) 1.1
Iout (Max) (A) 60
Output Power (W) 66
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
TIDT342.PDF (943 K)

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

TIDMBQ8.PDF (280 K)

Detailed schematic diagram for design layout and components

TIDMBQ9.PDF (224 K)

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

TIDMBR0.PDF (158 K)

Detailed overview of design layout for component placement

TIDCGG4.ZIP (780 K)

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

TIDMBR1.PDF (2318 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)

TPS59632-Q12.5-V to 24-V, 3-, 2-, and 1-phase step-down driverless controller

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report Automotive 1.1-V, 60-A, 3-Phase Synchronous Buck Converter Reference Design PDF | HTML Jul. 19, 2023

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