does the negative or positive cable from a power source go to pin 1 on a 5v regulator? Answered
i am working on a solar usb charger and everything i have read about 5v regulators says to connect the positive cable to pin 1 and the positive of the usb to pin 3. this doesnt seem right because th voltage wouldnt actually be taken down would it. I feel like the negative ends should be connected to the pins. am i right?