Hi All,

I have a PIC application (16f88 and 2 leds) that is working fine with a 7805 (from National) and a 6 volts 1 amper battery.

Yesterday, I replaced the 7805 with an LM2940CT5 (from National too) and my application didn't work. I tried with another LM2940CT5 and got the same result. I measure the input and the output and seemed ok. Just in case, tried another one, nothing happened.

I switched back to the 7805 and everything worked again!!!

I thought that the LM2940CT5 was better than the 7805, but is not.

Any ideas why is not working with the LM2940CT5? I cannot find out why is not working.

Thanks!

Daniel.