Why are my volt regs so hot?
April 29, 2011
I am drawing next to nothing from my volt regs and they continue to get hot! I have tried 3 different regulators, a 7805, one with a 3A output and now, one with a 5A output. I have my meter between the battery and the input of the volt reg and I am drawing less than 1/2A ( 440mA to be exact). Even at this level, the heatsink gets too hot to touch.
The current regulator is this one however, I can't stress enough, I have had the same results with 3 different (brand new) regs.
Is this some kinda ground loop? Maybe the fact that there are 3.3v regulators down the line? I just did a major wiring clean-up and everything is super tidy... I got nuthin' here.