Product Summary

The lm317 is a 3-Terminal Positive Adjustable Regulator. The lm317 is designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 V to 37 V range. The lm317 employs internal current limiting, thermal shutdown, and safe area compensation.

Parametrics

lm317 absolute maximum ratings: (1)VI - VO Input-Output Voltage Differential: 40 V; (2)TLEAD, Lead Temperature: 230 ℃; (3)TJ, Operating Junction Temperature Range: 0 to +125 ℃; (4)TSTG, Storage Temperature Range: -65 to +125 ℃; (5)ΔVO/ΔT, Temperature Coefficient of Output Voltage: ±0.02 %/℃.

Features

lm317 features: (1)Output-Current In Excess of 1.5 A; (2)Output-Adjustable Between 1.2 V and 37 V; (3)Internal Thermal Overload Protection; (4)Internal Short-Circuit Current Limiting; (5)Output-Transistor Safe Operating Area Compensation; (6)TO-220 Package.

Diagrams

lm317 block diagram

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
LM317AH/NOPB
LM317AH/NOPB

National Semiconductor (TI)

Linear Regulators - Standard

Data Sheet

0-1: $6.80
1-25: $5.57
25-100: $5.03
100-250: $4.62