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Supa Hot 78L05!!!

Started by brand0nized, August 05, 2014, 06:53:44 AM

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brand0nized

Building a Cave Dweller with a Taptation circuit, and when I plug in my 9V DC, the 78L05 regulator gets really hot!

I really want to check the voltages on the whole circuit to debug it, but I'm scared to keep the power plugged in.

What's wrong with it? Did I do some bad soldering to make it happen?

EDIT:
Switched in another regulator, same thing happened

wgc

Are you feeding it 9v?

Check to make sure it's in the right orientation. Also the diode and cap.

Otherwise you must have a short or bad joint nearby.

Post pix
always the beautiful answer who asks a more beautiful question.
e.e. cummings

brand0nized

Wrong orientation, the layout I used used a different regulator, thanks! But now new problems...


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rullywowr

Glad you sorted it.  Yes, 7805 and 78L05 are different...done that a few times myself.



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