PMP20814

3.75W Single Output Industrial PoE Isolated Flybuck Reference Design

PMP20814

Design files

Overview

PMP20814 is an isolated Flybuck converter utilizing the LM5018 for industrial applications. This design has a minimum operating input voltage of 43V and a maximum input voltage of 53V. The design has a primary output of 7.35V and a secondary output capable of sourcing 0.25A continuous current at 15Vout. Switching frequency is set to 250kHz. A custom transformer is used. PMP10543’s PCB was used to build the design.

Features
  • Primary side regulation without opto, good regulation, within +/-5%
  • No loop compensation required/fast transient response
  • Low BOM count and cost, compact solution size
  • No RC snubber at primary winding
Output voltage options PMP20814.1
Vin (Min) (V) 43
Vin (Max) (V) 53
Vout (Nom) (V) 15
Iout (Max) (A) .25
Output Power (W) 3.75
Isolated/Non-Isolated Isolated
Input Type DC
Topology FlyBuck
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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.

TIDUD70.PDF (973 K)

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

TIDRQX8.PDF (121 K)

Detailed schematic diagram for design layout and components

TIDRQX9.PDF (96 K)

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

TIDRQY1.ZIP (293 K)

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

TIDCDF6.ZIP (68 K)

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

TIDRQY0.PDF (283 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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

LM50187.5-100V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP20814 Test Results May 17, 2017

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