10-VDC to 30-VDC input PSR flyback converter with dual-output reference design


Design files


This reference design provides two isolated voltages (6 V at 200 mA, 12 V at 200 mA) from a DC-input supply (10 V - 30 V). By means of zero ohm resistors, a flexible transformer can be configured to change the turns ratio and output voltages without any layout change. The converter enables an isolated DC/DC solution with high density and low component count. No auxiliary transformer winding is required and a 100-V rated primary-side switch is integrated.

  • Provides compact solution due to elimination of optocoupler and transformer auxiliary winding
  • Programmable soft start limits the inrush current drawn by the power supply
  • Rated for up to 200 mA of load current
  • Resistor divider to EN/UVLO to faciltate programmable input voltage UVLO
  • Tested design with available design files and test report
  • Flexible transformer used for easy output voltage change
Output voltage options PMP30817.1 PMP30817.2
Vin (Min) (V) 10 10
Vin (Max) (V) 30 30
Vout (Nom) (V) 6 12.3
Iout (Max) (A) .2 .2
Output Power (W) 1.2 2.46
Isolated/Non-Isolated Isolated Isolated
Input Type DC DC
Topology Flyback- Integrated Switch Flyback- Integrated Switch

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.

TIDM884.PDF (143 K)

Detailed schematic diagram for design layout and components

TIDM885.PDF (101 K)

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

TIDM886.PDF (303 K)

Detailed overview of design layout for component placement

TIDM888.ZIP (578 K)

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

TIDCG12.ZIP (189 K)

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

TIDM887.PDF (800 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Isolated DC/DC converters & modules

LM518065-VIN no-opto flyback converter with 100-V, 1.5-A integrated MOSFET

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

Technical documentation

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Type Title Date
* User guide 10-VDC to 30-VDC Input PSR Flyback Converter With Dual-Output Reference Design May 04, 2021

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