I need to control a 5V 60mA load from an Arduino pin, but as the load has an output (tacho) that I will be reading from the Arduino, it seems I need to connect it as a high-side switch. What would be the best way to do it? I guess I need a P-MOSFET but would I need another NPN or N-MOSFET to control it?
(I have searched but mainly found ways to connect higher voltages, 12V or so... Couldn't find anything related directly to controlling 5V high-side, or couldn't understand it... noob in electronics).
An schematic would be great.