Hi - can someone please tell em the purpose of the P-channel MOSFET shown below? To me it looks as though the gate is permanently tied to GND which would mean the MOSFET is always allowing current to flow through the source-drain channel to supply the 3.3v regulator. Why is this MOSFET required at all?
Second question, does anyone know the part number for the momentary push button switch used on the Teensy 4.0? Is it the PTS810? https://au.mouser.com/Search/Refine?Keyword=pts810
Second question, does anyone know the part number for the momentary push button switch used on the Teensy 4.0? Is it the PTS810? https://au.mouser.com/Search/Refine?Keyword=pts810