LM317 datasheet(1/12 Pages) ONSEMI

Part #	LM317

Description	1.5 A Adjustable Output, Positive Voltage Regulator

Download	12 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

1 / 12 page

1.5 A Adjustable Output,

Positive Voltage Regulator

The LM317 is an adjustable 3–terminal positive voltage regulator

capable of supplying in excess of 1.5 A over an output voltage range of

1.2 V to 37 V. This voltage regulator is exceptionally easy to use and

requires only two external resistors to set the output voltage. Further, it

employs internal current limiting, thermal shutdown and safe area

compensation, making it essentially blow–out proof.

The LM317 serves a wide variety of applications including local, on

card regulation. This device can also be used to make a programmable

output regulator, or by connecting a fixed resistor between the

adjustment and output, the LM317 can be used as a precision current

regulator.

• Output Current in Excess of 1.5 A

• Output Adjustable between 1.2 V and 37 V

• Internal Thermal Overload Protection

• Internal Short Circuit Current Limiting Constant with Temperature

• Output Transistor Safe–Area Compensation

• Floating Operation for High Voltage Applications

• Available in Surface Mount D2PAK, and Standard 3–Lead Transistor

Package

• Eliminates Stocking many Fixed Voltages

Standard Application

**Cin is required if regulator is located an appreciable distance from power supply filter.

**CO is not needed for stability, however, it does improve transient response.

Since IAdj is controlled to less than 100 µA, the error associated with this term is

negligible in most applications.

Vout + 1.25V 1 )

R2

R1

) IAdj R2

LM317

Vin

Vout

R1

240

R2

Adjust

IAdj

Cin*

0.1 µF

+ CO**

1.0 µF

ON Semiconductort

January, 2002 – Rev. 3

1

Publication Order Number:

LM317/D

SEMICONDUCTOR

TECHNICAL DATA

THREE–TERMINAL

ADJUSTABLE POSITIVE

VOLTAGE REGULATOR

Device

Operating

Temperature Range

Package

T SUFFIX

PLASTIC PACKAGE

CASE 221A

ORDERING INFORMATION

LM317BT

LM317BD2T

Insertion Mount

Surface Mount

LM317T

LM317D2T

TJ = 0° to +125°C

Insertion Mount

Surface Mount

TJ = –40° to +125°C

Pin 1. Adjust

2. Vout

3. Vin

D2T SUFFIX

PLASTIC PACKAGE

CASE 936

(D2PAK)

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

3

1

2

Heatsink surface

connected to Pin 2.

LM317

3

1

2

Similar Part No. - LM317

Manufacturer	Part #	Datasheet	Description
National Semiconductor ...	LM317	645Kb / 25P	3-Terminal Adjustable Regulator
Tiger Electronic Co.,Lt...	LM317	157Kb / 3P	3-Terminal Positive Adjustable Regulator
List of Unclassifed Man...	LM317	308Kb / 3P	3-TERMINAL 1.5A POSITIVE ADJUSTABLE VOLTAGE REGULATOR
E-Tech Electronics LTD	LM317	255Kb / 5P	HIGH CURRENT 1.3V TO 37V ADJUSTABLE VOLTAGE REGULATOR
STMicroelectronics	LM317	99Kb / 11P	1.2V TO 37V VOLTAGE REGULATOR

More results

Similar Description - LM317

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	LM317	172Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator October, 2011 ??Rev. 12
	LM317LB	188Kb / 12P	1.5 A Adjustable Output Positive Voltage Regulator April, 2013 ??Rev. 13
	NCP317BTG	208Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator April, 2013 ??Rev. 13
	LM317	127Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator January, 2016 ??Rev. 14
	NCV317	133Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator August, 2005 ??Rev. 8
KODENSHI_AUK CORP.	SN317PI	401Kb / 8P	[ 1.5 A Adjustable Output ] Positive Voltage Regulator
ON Semiconductor	LM317	146Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator August, 2006 ??Rev. 9
	LM337AT	160Kb / 10P	1.5 A, Adjustable Output, Negative Voltage Regulator April, 2012 ??Rev. 9
	LM337	133Kb / 10P	1.5 A, Adjustable Output, Negative Voltage Regulator August, 2006 ??Rev. 6
	LM337	123Kb / 11P	1.5 A, Adjustable Output Negative Voltage Regulator January, 2015 ??Rev. 10

More results

LM317 Datasheet(PDF) 1 Page - ON Semiconductor

LM317 Datasheet(HTML) 1 Page - ON Semiconductor

Similar Part No. - LM317

Similar Description - LM317

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL