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    2 5V power source for a circuit

    Hi, I'm wondering if it's possible for a circuit to have 2 different power sources for 5V? I've seen many USB bus powered drives that normally use the USB 5V voltage to power the drive, but they often also have a DC jack. All of the ones that I've seen have both the Vusb and the Vdcjack...
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    Help me choose a mosfet

    Hi, I have an application where I have to switch on/off 2 3.3V low power devices(~50mA max combined) with a 3.3V MCU signal. I am currently using a TP0610K that I have lying around with the following connections. Source - 3.3V Gate - 50K pullup to 3.3V, and MCU control signal Drain - 1M pulldown...
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