Power 3 pins

LM317

Adjustable positive linear voltage regulator, 1.25V to 37V output.

// connector diagram 3 pins

// loading diagram...

// Specifications

Output Range

1.25V – 37V

Output Current

1.5A

Dropout Voltage

~2V to 3V

Package

TO-220

Line Regulation

0.01% typical

Load Regulation

0.1% typical

// Pin Reference Table

Pin	Name	Function	Type
1	ADJUST	Sets output voltage via resistor divider	ADC
2	OUTPUT	Regulated adjustable output	PWR
3	INPUT	Unregulated DC input	PWR

The LM317 is an adjustable three-terminal positive voltage regulator capable of supplying 1.5A over an output range of 1.25V to 37V. The output voltage is set using two external resistors, making it very flexible for variable power supply designs.