Automotive Multi-Phase Synchronous Buck Power Module Reference Design


Design files


The PMP10979 is a highly efficient, multi-phase synchronous buck power module. The input voltage range is 11V to 24.30V, with an output of 13.50V at 95A. The design is intended for automotive applications.

  • Output of 13.50V at 95A
  • 90 degrees phase shifted -4 Phase Synchronous Buck Converter
  • Efficiency is greater than 97% with a 24V input at full load
  • Good thermal performance
  • Test report available
Output voltage options PMP10979.1
Vin (Min) (V) 11
Vin (Max) (V) 24.3
Vout (Nom) (V) 13.5
Iout (Max) (A) 90
Output Power (W) 1215
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.

TIDUA16.PDF (1165 K)

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

TIDRF14.PDF (304 K)

Detailed schematic diagram for design layout and components

TIDRF15.PDF (137 K)

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

TIDRF16.PDF (413 K)

Detailed overview of design layout for component placement


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


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

LM5119QAutomotive Grade 5.5-65V Wide Vin, Current Mode Dual Synchronous Buck Controller

Data sheet: PDF
Inverting buffers & drivers

SN74LVC1G04Single 1.65-V to 5.5-V inverter

Data sheet: PDF
Real-time clocks (RTCs) & timers

LMC555World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10979 Test Results Jun. 04, 2015
Technical article Power Tips: Voltage mode or current mode? Oct. 02, 2015
Technical article Power Tips: Design considerations for a four-phase 1,200W synchronous buck – part 2 Jul. 15, 2015
Technical article Power Tips: Four-phase, 1.2-kW design achieves high efficiency at higher currents Jun. 10, 2015

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