Lm317 Circuit For 12v. Lm317 basic circuit diagram. C1 is the input capacitance.
The recommended value is 0 1 μf. Low dropout 5v regulator. The adjustable pin is connected with the two external resistor and connected with the vout pin of the ic.
This circuit has an inbuilt bridge rectifier so i can directly supply 220v or 110v ac supply at the input of the lm317 circuit.
It can supply greater than 1 5 a at the output. C1 is the input capacitance. When we use a cheap mp3 player which uses only one 1 5v aa battery as its power supply. Resistor network comprising of r1 and r2 connected in association to the pin1 adj is used to set the output voltage.
