36W Industrial PoE Isolated Flyback Reference Design


Design files


PMP20692 is an isolated flyback converter utilizing the LM5022 for industrial applications. This design accepts PoE input voltage of 54V ± 10%. The test report here is 54V in ± 10%, 12V out @ 3A of load current.  Switching frequency is set to 250kHz. A custom transformer is used in this test report for all the scope capture.

  • 54Vin±10%, 12Vout @ 3A out – IC capable of 6V to 60Vin
  • 36W isolated output
  • Peak efficiency 92%
  • High power density: 110W/6 square inches
  • Secondary soft start
Output voltage options PMP20692.1
Vin (Min) (V) 48
Vin (Max) (V) 60
Vout (Nom) (V) 12
Iout (Max) (A) 3
Output Power (W) 36
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback
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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.

TIDUCX0.PDF (1188 K)

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


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement


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

TIDCD63.ZIP (418 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM50226-60V Wide Vin, current mode boost, SEPIC and Flyback controller

Data sheet: PDF | HTML
Shunt voltage references

TLV431B0.5% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP20692 Test Results Feb. 09, 2017

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