LM317BD2TR4 datasheet(1/12 Pages) ONSEMI

부품명	LM317BD2TR4

상세설명	1.5 A Adjustable Output, Positive Voltage Regulator

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August, 2005 − Rev. 8

1

Publication Order Number:

LM317/D

LM317, NCV317

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.

Features

• 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−3, and Standard 3−Lead

Transistor Package

• Eliminates Stocking many Fixed Voltages

• Pb−Free Packages are Available

Figure 1. 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 mA, the error associated with this term is

negligible in most applications.

Vout + 1.25 V 1 )

R

2

R

1

) I

Adj

R

2

LM317

Vin

Vout

R1

240

R2

Adjust

IAdj

Cin*

0.1

mF

+ C

O**

1.0

mF

TO−220

T SUFFIX

CASE 221A

Pin 1. Adjust

2. Vout

3. Vin

D2PAK−3

D2T SUFFIX

CASE 936

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

3

1

2

Heatsink surface connected to Pin 2.

3

1

2

http://onsemi.com

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

ORDERING INFORMATION

See general marking information in the device marking

section on page 10 of this data sheet.

DEVICE MARKING INFORMATION

유사한 부품 번호 - LM317BD2TR4

제조업체	부품명	데이터시트	상세설명
ON Semiconductor	LM317BD2TR4	146Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator August, 2006 ??Rev. 9
	LM317BD2TR4	172Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator October, 2011 ??Rev. 12
	LM317BD2TR4G	146Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator August, 2006 ??Rev. 9
	LM317BD2TR4G	172Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator October, 2011 ??Rev. 12
	LM317BD2TR4G	127Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator January, 2016 ??Rev. 14

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유사한 설명 - LM317BD2TR4

제조업체	부품명	데이터시트	상세설명
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
	LM317	132Kb / 12P	1.5 A Adjustable Output, Positive Voltage Regulator January, 2002 ??Rev. 3
	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
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

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