Sepic with Adjustable Output Voltage and Input Current Limit Reference Design


Design files


This reference design provides an adjustable output voltage between 20V and 25V and an input voltage range of 10V to 14V. It also provides the functionality to limit the input current of the converter between 70mA and 135mA. The adjustable values are set by a VID interface which is either discrete or integrated.

  • Adjustable output voltage
  • Adjustable input current limit
Output voltage options PMP10151.1
Vin (Min) (V) 10
Vin (Max) (V) 14
Vout (Nom) (V) 25
Iout (Max) (A) .135
Output Power (W) 3.375
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.

TIDU908.PDF (873 K)

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

TIDRE52.PDF (283 K)

Detailed schematic diagram for design layout and components

TIDRE53.PDF (17 K)

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

TIDRE54.PDF (217 K)

Detailed overview of design layout for component placement

TIDRE56.ZIP (633 K)

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

TIDCA41.ZIP (41 K)

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

TIDRE55.PDF (245 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

LM50013.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator

Data sheet: PDF | HTML
Precision DACs (≤10 MSPS)

LM100111% Accuracy 4/6-Bit VID Voltage Programmer for Point of Load Regulator w/ Adj Start-Up Current

Data sheet: PDF

Technical documentation

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Type Title Date
Test report PMP10151 Test Results Apr. 10, 2015

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