Other Parts Discussed in Thread: TPS22953
I'd like to use the TPS22990N to isolate a DC/DC converter from a separate power supply. Please see the schematic I've pasted below, and the larger version I've attached. I'm worried that the switch will not have a bias voltage when the barrel jack supply is absent. It seems like current will leak back through the switch if there's no bias supply to charge the output MOSFET. My solution is to provide this bias voltage from the output through a diode. Will the switch be OK with this?