7
votes
4answers
888 views

Do Linear regulators have a minimum current to maintain their output voltage?

When I was searching Digikey for a ~6V to 3.3V Linear regulators, there was a minimum current column in the listing results. This kind of threw me because I didn't know that there was such a thing, or ...
9
votes
1answer
215 views

LED current while off

I have a vague recollection that while off, a LED can actually receive light and generate a small current (in uA). Is that correct? How does that work? What is the best way to prevent this?