Reference Designs
Wide VIN FlyBuck? Power Converter with Two Isolated Bias Supplies + One Non-Isolated Power
Texas Instruments
Based on the Wide VIN COT Sync Buck regulator LM5017, this FlyBuck circuit provides excellent regulation for two isolated outputs and one non-isolated output. Compared with a conventional Flyback circuit, this design features a smaller board size and minimized BOM without the need for an optocoupler. This design is well suited for applications which need bias power. Additional output voltage versions of this board are available: see PMP7798.2 and PMP7798.3
Features
- 36V to 75V Input
- Primary side output: 10V output at 40mA
- Secondary side output 1: 5V output at 80mA
- Secondary side output 2: 10V output at 120mA
- This fully-functional evaluation board is supported with design files, a demo, and an application note
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