Product Summary

The lm317d is a adjustable voltage regulator. The lm317d is designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by means of only a resistive divider, making thelm317d exceptionally easy to use and eliminating the stocking of many fixed regulators.

Parametrics

lm317d absolute maximum ratings: (1) Input-reference differential voltage VI-VO: 40V; (2) Output Voltage IO: Internally limited; (3) Input-reference differential voltage TOP: 0 to 125°C; (4) Power dissipation PD: Internally limited; (5) Storage temperature TSTG: -65°C to +150°C.

Features

lm317d features: (1) Output voltage range: 1.2 to 37V; (2) Output current in excess of 1.5A; (3) 0.1% Line and load regulation; (4) Floating operation for high voltages; (5) Complete series of protections: current limiting, thermal shutdown and SOA control.

Diagrams

lm317d pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM317D2T
LM317D2T
STMicroelectronics
Linear Regulators - Standard 1.2-37V Adj Positive
Data Sheet
0-1370: $0.32
1370-2000: $0.28
2000-5000: $0.27
5000-10000: $0.26
LM317D2TG
LM317D2TG
ON Semiconductor
Linear Regulators - Standard 1.5A ADJ 1.2-37V Positive
Data Sheet
0-1: $0.46
1-25: $0.41
25-100: $0.30
100-500: $0.25
LM317D2TR4
LM317D2TR4
ON Semiconductor
Linear Regulators - Standard 1.5A ADJ 1.2-37V
Data Sheet
Negotiable 
LM317D2TR4G
LM317D2TR4G
ON Semiconductor
Linear Regulators - Standard 1.5A ADJ 1.2-37V Positive
Data Sheet
0-1: $0.56
1-25: $0.44
25-100: $0.38
100-500: $0.28
500-800: $0.28
LM317D2T-TR
LM317D2T-TR
STMicroelectronics
Linear Regulators - Standard 1.2-37V Adj Positive
Data Sheet
0-1: $0.48
1-10: $0.37
10-100: $0.32
100-250: $0.28
LM317D2TXM
LM317D2TXM
Fairchild Semiconductor
Linear Regulators - Standard STD_LINEAR
Data Sheet
Negotiable 
LM317DCY
LM317DCY
Texas Instruments
Linear Regulators - Standard 3 T 1.5A Adj Pos V
Data Sheet
0-1: $0.50
1-25: $0.45
25-100: $0.33
100-250: $0.27
LM317DCYG3
LM317DCYG3
Texas Instruments
Linear Regulators - Standard 3Pin 1.5A Adj Vltg Reg
Data Sheet
0-1: $0.58
1-25: $0.43
25-100: $0.32
100-250: $0.24