4000Vac Isolated Fly-Buck Power Converter for Medical Applications Reference Design


Design files


The PMP10563 reference design is a single output isolated Fly-Buck power supply for Medical applications. It takes 12V nominal input and provides 5.6V 0.12A output. The minmum input voltage can go down to 6V. The design features the LM5160 synchronous buck converter configured as a Fly-Buck regulator. With the benefit of primary side regulation, the power supply can sustain 4000Vac isolation voltage between primary and secondary. At the same time, it can control secondary voltage changes of ±5%.

  • Single 5.6V 0.12A output
  • 4000Vac isolation votlage between primary and secondary
  • Wide input voltage range of 6V to 14V
  • 83% peak efficiency at 0.67W output power
  • Good load regulation without opto coupler
Output voltage options PMP10563.1
Vin (Min) (V) 6
Vin (Max) (V) 14
Vout (Nom) (V) 5.6
Iout (Max) (A) .12
Output Power (W) .672
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.

TIDUA34.PDF (1560 K)

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

TIDRF68.PDF (142 K)

Detailed schematic diagram for design layout and components

TIDRF69.PDF (106 K)

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


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


Includes TI products in the design and potential alternatives.

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

LM5160LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10563 Test Results Jun. 12, 2015

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