Comment on No output with MCP1700-3302E
BigDanishGuy@sh.itjust.works 11 months ago
- What are you expecting it to read on V~out~?
- The “typical application circuits” on page 2 in the datasheet ww1.microchip.com/…/MCP1700-Data-Sheet-20001826F.… shows both input and output being decoupled with a 1µF cap, have you tried that? I haven’t worked with the MCP1700, but I have had other LDOs fry themselves because the decoupling malfunctioned.
Froghut@lemmy.dbzer0.com 11 months ago
I initially tried with those capacitors but decided to also try without them - perhaps you’re right and I broke my LDOs by doing that :/
BigDanishGuy@sh.itjust.works 11 months ago
I’m not saying that your LDOs are fried. What I am saying is that some LDOs don’t take too kindly on not having the company of some nice caps.
What just caught my eye is that the datasheet specifies ceramic non-polar caps. That seems a bit weird. Just drawing a non-polar would have made sense, but specifying that it is a ceramic is strange. Using a ceramic makes sense, I mean there are 5 times the ceramic 1uF caps on digikey than there are electrolytics, but it should be technologically agnostic… I’d probably try to get some 1uF ceramics for testing.