PMP10632 is an isolated flyback converter reference design using the LM5020-2 controller IC. The reference design accepts an input voltage of 36Vin to 75Vin (48Vin nominal) and provides an isolated output of 3.3Vout, capable of supplying 4A of continuous current to the load. The nominal switching frequency of the design is approximately 250 KHz. All tests for this report were performed at 36Vin, 48Vin, and 75Vin. The board is a 2-layer PCB with 1oz. copper.
Features
- Primary-to-secondary isolation
- Second stage output filter for lower output voltage ripple and lower RMS currents
- Low temperature rise
- Cycle-by-cycle current limit