Synchronous rectification Buck DC-DC solution verification board based on LM5116

• Input voltage range: 11-65V

• Output voltage range: 0-60V

• Output current range: 0-25A

• Conversion efficiency: more than 95% (depending on the actual situation, 30V input, 5V 10A output calculation efficiency is about 95%)

• Constant voltage reference ratio: 20:1

• Constant current reference ratio: 50: (1+Vref/2)

• Input voltage ratio: 21:1

• There will be slight errors in the actual situation, please adjust by yourself.

• Automatically switch CV/CC, external reference voltage and enable signal input, input voltage, output voltage, current feedback signal, constant current signal output (convenient for the microcontroller to determine whether the power module has entered constant current).

• The loop blind adjustment is completed and the loop self-excitation will not occur (short circuit triggering constant current is no problem). Thanks to the built-in slope compensator, the IC can output an extremely low duty cycle and operate stably.

• Notice! Try not to change the inductor and sampling resistor parameters, otherwise the original slope compensator may not work, and the Cramp (i.e. C8 in the document) must be recalculated. The calculation formula is in the LM5116 datasheet.