Low Voltage Flyback Converter Provides 5KV Isolation Reference Design


Design files


This isolated flyback converter provides a regulated 5V @ 1A output from a low voltage input (3.5V - 5.5V). The PMP8871 is built on the TPS55340 boost converter EVM.

Output voltage options PMP8871.1
Vin (Min) (V) 3.5
Vin (Max) (V) 5.25
Vout (Nom) (V) 5
Iout (Max) (A) 1
Output Power (W) 5
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- CCM
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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.

SLVU872.PDF (958 K)

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

SLVRB39.PDF (30 K)

Detailed schematic diagram for design layout and components

SLVRB40.PDF (18 K)

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


Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS553405-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Data sheet: PDF | HTML
Shunt voltage references

TLV4311.5% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8871 Test Results Feb. 11, 2013

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