PMP31261

Wide VIN PSR flyback converter dual-output reference design

PMP31261

Design files

Overview

The primary-side regulated (PSR) flyback converter reference design provides dual outputs (12 V at 170 mA and 18 V at 60 mA). The design has a small form factor with low component count. It operates over an input voltage range of 8 V to 28 V to deliver two isolated outputs. Operating without an auxiliary winding or optocoupler, the LM5180 provides very tight output voltage regulation. The LM5180 offers several protection features to ensure protection of the regulator during fault conditions.

Features
  • Primary-side regulation eliminates optocoupler
  • Integrated FET minimizes external components
  • 8-V to 28-V input voltage range
  • 12-V and 18-V output voltages
Output voltage options PMP31261.1 PMP31261.2
Vin (Min) (V) 8 8
Vin (Max) (V) 28 28
Vout (Nom) (V) 12 18
Iout (Max) (A) .17 .06
Output Power (W) 2.04 1.08
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Flyback- Integrated Switch Flyback- 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.

PDF | HTML
TIDT351.PDF (1408 KB)

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

TIDMBV5.PDF (187 KB)

Detailed overview of design layout for component placement

TIDMBV4.PDF (146 KB)

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

TIDMBV7.ZIP (603 KB)

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

TIDCGH3.ZIP (113 KB)

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

TIDMBV6.PDF (454 KB)

PCB layer plot file used for generating PCB design layout

TIDMBV3.PDF (257 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

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

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

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report Wide VIN PSR Flyback Converter Dual-Output Reference Design PDF | HTML Sep 21, 2023

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