Automotive Grade Power Supply Design for RPI5

[mbt28]

Dear Hackers, Makers,

I am using lin-transceiver to connect Infotainment-Bus of my old car. Lin IC wakes up whenever bus line has a falling edge and provides 3.3V 50ma from VCC pin then this pin connected power supply enable pin. When lin transceiver disabled it cuts all power. Currently I am using a stepdown module that I purchased from Aliexpress which has an EN pin but this board only provides maximum 3A.

What kind of power supply IC are you using in your setup? Would you suggest an automotive grade design which can handle 5V 6A?

Thanks