Could LTC3891 support 54VIN to 12V/20A (non-isolate) ? What is max OCP of LTC3891? Thank you.
The maximum current is defined by value of the current sense resistor (or DCR). Regarding possibility of generating 12V at 20A, please consult the local ADI representative.
Yes. DC1940A demo board is closest your specs using a 3 milli ohm sense resistor.
So LTC3891 function can achieve 12V/20A just need to modify peripheral component include current sense resistor, right? Thank you.