230VAC Input 5.5V/250mA Non-Isolated Flyback Converter Reference Design


Design files


This reference design creates a non-isolated 5.5V at 250mA from a 230VAC Input. This supply is to designed to fit into a very small volume with less than 10mm total height.

Output voltage options PMP8968.1
Vin (Min) (V) 176
Vin (Max) (V) 264
Vout (Nom) (V) 5.5
Iout (Max) (A) .25
Output Power (W) 1.375
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Flyback- Quasi Resonant
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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.

SLUUAI3.PDF (1243 K)

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

SLURA86.PDF (111 K)

Detailed schematic diagram for design layout and components

SLURA87.PDF (77 K)

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

SLUC460.ZIP (159 K)

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


Includes TI products in the design and potential alternatives.

Flyback controllers

UCC28710Constant-voltage, constant-current PWM with PSR, valley switching & Programmable cable compensation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8968 Test Results May 24, 2013

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