LM317 datasheet(1/25 Pages) STMICROELECTRONICS

Part #	LM317

Description	1.2 V to 37 V adjustable voltage regulators

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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February 2008

Rev 14

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25

LM117/LM217/LM317

1.2 V to 37 V adjustable voltage regulators

Features

■ Output voltage range: 1.2 to 37 V

■ Output current in excess of 1.5 A

■ 0.1% Line and load regulation

■ Floating operation for high voltages

■ Complete series of protections: current limiting,

thermal shutdown and SOA control

Description

The LM117/LM217/LM317 are monolithic

integrated circuit in TO-220, TO-220FP, TO-3 and

D2PAK packages intended for use as positive

adjustable voltage regulators.

They are 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 the device

exceptionally easy to use and eliminating the

stocking of many fixed regulators.

TO-220FP

D2PAK

TO-220

TO-3

Table 1.

Device summary

Order codes

TO-220

D2PAK (tape and reel)

TO-220FP

TO-3

LM117K

LM217T

LM217D2T-TR

LM217K

LM317T

LM317D2T-TR

LM317P

LM317K

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