Automotive Sepic Reference Design with 11.0V @ 0.3A


Design files


This automotive sepic converter reference design provides 11.0V @ 0.3A from an input voltage range of 4V to 13V. The sepic topology allows the input to vary below and above the regulated output voltage. A free-running switching frequency of 400KHz enables small circuit size with good efficiency. Power stage components operate below 41 degrees Celsius.

  • Compact size
  • Low EMI
  • Automotive qualitifed controller TPS55340-Q1
  • Test report and design files available
Output voltage options PMP30342.1
Vin (Min) (V) 4
Vin (Max) (V) 13
Vout (Nom) (V) 11
Iout (Max) (A) .3
Output Power (W) 3.3
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Sepic- Integrated Switch
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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.


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

TIDRT35.PDF (91 K)

Detailed schematic diagram for design layout and components

TIDRT36.PDF (23 K)

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

TIDRT37.PDF (249 K)

Detailed overview of design layout for component placement

TIDRT39.ZIP (93 K)

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

TIDRT38.PDF (575 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS55340-Q1Integrated, 5-A 40-V wide input range boost/SEPIC/flyback DC/DC regulator, AEC-Q100 qualified

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP30342 Test Results Oct. 09, 2017

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