Product Summary

The LM317 is a 3-Terminal adjustable regulator. The LM317 adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. It is exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulator. Also, the LM317 is packaged in standard transistor packages which are easily mounted and handled.

Parametrics

LM317 absolute maximum ratings: (1)Power Dissipation: Internally Limited; (2)Input-Output Voltage Differential: +40V, .0.3V; (3)Storage Temperature: -65℃ to +150℃; (4)Lead Temperature. Metal Package (Soldering, 10 seconds): 300℃; (5)Plastic Package (Soldering, 4 seconds): 260℃; (6)ESD Tolerance: 3 kV.

Features

LM317 features: (1)Guaranteed 1% output voltage tolerance; (2)Guaranteed 1.5A output current; (3)Adjustable output down to 1.2V; (4)Current limit constant with temperature; (5)P+ Product Enhancement tested; (6)80 dB ripple rejection; (7)Output is short-circuit protected.

Diagrams

LM317 Typical Applications

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM317
LM317
Other

Data Sheet
Negotiable 
LM317A
LM317A
Other

Data Sheet
Negotiable 
LM317AEMP
LM317AEMP
National Semiconductor (TI)
Linear Regulators - Standard
Data Sheet
0-1000: $0.49
LM317AEMP/NOPB
LM317AEMP/NOPB
National Semiconductor (TI)
Linear Regulators - Standard 3-TERMINAL ADJ REG
Data Sheet
0-1: $1.13
1-25: $0.91
25-100: $0.82
100-250: $0.73
LM317AEMPX
LM317AEMPX
National Semiconductor (TI)
Linear Regulators - Standard
Data Sheet
0-2000: $0.53
2000-4000: $0.49
4000-6000: $0.47
6000-10000: $0.46
LM317AEMPX/NOPB
LM317AEMPX/NOPB
National Semiconductor (TI)
Linear Regulators - Standard 3-TERMINAL ADJ REG
Data Sheet
0-1: $1.13
1-25: $0.91
25-100: $0.82
100-250: $0.73
LM317AH
LM317AH
National Semiconductor (TI)
Linear Regulators - Standard
Data Sheet
0-500: $4.21
500-1000: $3.67
LM317AHV
LM317AHV
Other

Data Sheet
Negotiable