Adjustable voltage regulator 3 terminal st lm317lz 3 terminal positive voltage regulator adjustable output voltage 12v to 37v output voltage single output 100ma output current 3v to 40v supply voltage 40 to 125c to 92 case the lm317l is an adjustable 3 terminal positive voltage regulator capable of supplying 100ma output is short circuit protected st lm317lz adj voltage regulator 100ma to92