LM317T datasheet(1/2 Pages) COMSET

No de pièce	LM317T

Description	3-Terminal Positive Adjustable Regulators

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Fabricant	COMSET [Comset Semiconductor]

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LM317T

02/10/2012

COMSET SEMICONDUCTORS

1/2

3-Terminal Positive Adjustable Regulators

GENERAL DESCRIPTION

The LM317T are monolithic integrated circuits in TO220 packages.

They are intended for use as positive adjustable voltage regulators, and designed to supply

more than 1.5A of load current whit an output voltage adjustable over a 1.2 to 37V range.

Compliance to RoHS.

ABSOLUTE MAXIMUM RATINGS

Symbol

Ratings

Value

Unit

Vi-Vo

Input-Output Voltage Differential

40

V

Io

Output Current

1.5

A

PD

Power Dissipation

Internally

Limited

W

TOP

Operating Junction Temperature

0° to 125

°C

TSTG

Storage Temperature

-65° to 150

°C

THERMAL DATA

Symbol

Ratings

Value

Unit

RthJC

From Junction to Case Thermal Resistance

1.67

°C/W

RthJA

From Junction to Free-Air Thermal Resistance

62.5

CHARACTERISTICS

Vi-Vo = 5 V, IO = 500 mA, IMAX = 1.5 A, PMAX = 20 W, unless otherwise specified

Symbol

Ratings

Test Condition(s)

Min

Typ

Max

Unit

VREF

Reference Voltage

Vi-Vo = 5 V

IO = 40 to 500 mA

1.2

1.25

1.3

V

∆ V

o

Line Regulation

Vi-Vo = 3 to 40 V

IO = 500 mA

-

0.05

%/V

∆ V

o

Load Regulation

Vi-Vo = 5 V

IO = 10mA to 1.5 A

-

1

%

IADJ

Adjustment Pin Current

Vi-Vo = 5 V

IO = 40 to 500 mA

-

100

µA

∆ I

ADJ

Adjustment Pin Current

Vi-Vo = 3 to 40 V

IO = 40 to 500 mA

-

5

µA

∆ I

ADJ

Adjustment Pin Current

Vi-Vo = 5 V

IO = 10mA to 1.5 A

-

5

µA

SVR

Ripple Rejection

Vi-Vo = 5 V; IO= 500 m A

VO= 10 V; f= 100 Hz

CADJ = 10 µF

66

-

dB

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