I'm pretty confident in this circuit theoretically, but I wanted to run it past the EESE community in case there is some flaw in the design, maybe someone could point it out. If it's great, then the question makes a good reference for others seeking a similar solution.
So my design constraints are I would like to be able to switch up to about 350mA at 5V, and I would like the control signal to this switch to be 5V and active-high. That is to say, when 5V is applied to the control, the switch should be closed and allow current to pass, and when 0V is applied to the control, the switch should be open, and no current should flow into through. Default state should be off if control input is floating.
The circuit I have conceived for this purpose is pretty basic.
… and I've identified a dual-FET package that should more than cover my requirements DMG6602SVT.
Any problems with this concept?