What kind of reverse voltage protection methods should I use when the load can sometimes have greater voltage(5V) than the input(3.7~4.2V Li-po)? I'm not considering diodes, or even schottky diodes in order to minimize voltage drop. Using something like P-Channel MOSFET would be great, but with little math, when voltage is applied to load, it would turn on eventually be useless. What other methods would be present for this situation?
Any help would be greatly appreciated, Thanks!
Any help would be greatly appreciated, Thanks!