I am trying to make a very low power sensor board that should run for years from a coin cell. Several of my sensors require 3.3v but the coin cell only provides 3v so I am using a boost chip. I want to be able to turn the boost chip on/off as most of the time it is not required. I also have a RF device I wish to turn off when not in use.
I am unsure if it is best to use a P-channel mosfet or a pnp transistor. I need the devices to be high-side switched as they require a good ground plane.
I want the power consumption to be as small as possible. I have attached an initial schematic.