1.25V@1A Synchronous Step-Down Converter with Integrated MOSFETs Reference Design


Design files


This design is a synchronous buck converter for automotive applications. It uses the TPS57112-Q1 to deliver an output voltage of 1.25V@1.0A. The adjustable switching frequency is 2MHz.

  • High switching frequency
  • Low power
Output voltage options PMP10002.1
Vin (Min) (V) 2.95
Vin (Max) (V) 3.6
Vout (Nom) (V) 1.25
Iout (Max) (A) 1
Output Power (W) 1.25
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous

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.

TIDU896.PDF (456 K)

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

TIDRE04.PDF (102 K)

Detailed schematic diagram for design layout and components

TIDRE05.PDF (104 K)

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

TIDRE06.PDF (208 K)

Detailed overview of design layout for component placement


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS57112-Q1Automotive 2.95V to 6V, 2A, 2MHz Synchronous Buck Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report PMP10002 Test Results Apr. 08, 2015

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