15W Automotive Start Stop Power Supply


Design files


PMP9476 is non-sync buck converter plus a non-sync boost controller accepts an input voltage of 3.5V to 40V, and outputs 5V, capable of providing 3A of current to the load.

  • Small form factor Start Stop Supply
  • Class 5 CISPR 25 Conducted EMI compliant
  • Reverse Polarity Protection Built In
  • Single rectifier system, eliminated the boost high side rectifier with PFET
  • PFET to replace LM3481 controller rectifier to improve efficiency and thermal performance
  • Low Component Temperature Rise

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.

TIDU809.PDF (1838 K)

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

TIDRD39.PDF (178 K)

Detailed schematic diagram for design layout and components

TIDRD40.PDF (101 K)

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

TIDRD42.ZIP (680 K)

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

TIDC931.ZIP (93 K)

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

TIDRD41.PDF (529 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM3481-Q12.97-V to 48-V high-efficiency controller for boost, SEPIC and flyback, AEC-Q100 qualified

Data sheet: PDF | HTML
Buck converters (integrated switch)

LM26003-Q13A Switching Regulator with High Efficiency Sleep Mode

Data sheet: PDF | HTML
N-channel MOSFETs

CSD18531Q5A60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.6 mOhm

Data sheet: PDF | HTML
P-channel MOSFETs

CSD25310Q2-20-V, P channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 23.9 mOhm

Data sheet: PDF | HTML
Shunt voltage references

TL432-Q1Automotive adjustable precision shunt regulator (pin layout: RKA)

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP9476 Test Results Feb. 26, 2015

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