I had 2 LM317 adjustable voltage regulators running side by side producing 5v and 12v off a single 13v supply. They both had their own pass transistor to boost the current output. But now ive done something (not sure what) and the voltage output keeps dropping.
If i have one of the regulators setup by itself to regulate at 5v and i pump 12v into it will produce 5v, but when i put a load on it the voltage drops to 3-4v. Does that mean its stuffed? What could have caused this?
Also when i have both 5v and 12v circuits working at the same time and i place a load on the 5v circuit the output voltage of the 12v reg drops to 3v.
If i have one of the regulators setup by itself to regulate at 5v and i pump 12v into it will produce 5v, but when i put a load on it the voltage drops to 3-4v. Does that mean its stuffed? What could have caused this?
Also when i have both 5v and 12v circuits working at the same time and i place a load on the 5v circuit the output voltage of the 12v reg drops to 3v.