LLC Resonant Converter with Sync Rectifier


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Block Diagram

LLC Resonant Converter

RDLLC56F82748 Block Diagram

Supported Devices

Processors and Microcontrollers

32-Bit 56800EX/EF Core


  • Flash updating
  • 12 V/240 W output with universal mains input
  • 120mVp-p output ripple; Overshoot < 5%@0 to 65% load step; Hold up time 20ms@50% load, 15ms@100% load
  • Over-current, over-/under-voltage, voltage brown-in, over-temperature, power limit protection functions
  • Modular software and hardware design for convenient internal reuse and customer evaluation
  • Components
    • Half-bridge LLC with synchronous rectifier
  • Interfaces
    • Isolated USB interface for FreeMASTER connection
    • Isolated SCI communication between primary side and secondary side; IIC interface is reserved for PMBus communication

Buy Options


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  • TWR-56F8200

  • Tower System, DSC Module, MC56F823XX.


Quick reference to our documentation types.

2 documents

Design Resources

Design Files

1 design file


5 software files

Note: For better experience, software downloads are recommended on desktop.