LM317MDT datasheet(1/1 Pages) TGS

部件名	LM317MDT

功能描述	3-Terminal Positive Adjustable Regulator

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制造商	TGS [Tiger Electronic Co.,Ltd]

网页	http://www.tgselec.com

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Parameter

Symbol

Typ

Unit

Input-Output Voltage Differential

V

I -VO

40

V

Lead Temperature

TLEAD

230

oC

Power Dissipation

P

D

Internally

limited

W

Operating Junction Temperature R

ange

T

j

0~125

oC

Storage Temperature Range

T

STG

-65~150

oC

Temperature Coefficient of Output

Voltage

ΔVo/ΔT

±0.02

%/

oC

LM317MDT

Features

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Line Regulation (Note1)

Rline

TA = +25

oC

3V

≤V

I - VO ≤40V

-

0.01

0.04

% / V

3V

≤V

I - VO ≤40V

-

0.02

0.07

Load Regulation (Note1)

Rload

TA = +25

oC, 10mA ≤I

O ≤IMAX

V

O < 5V

V

O ≥5V

-

18

0.4

25

0.5

mV % / V

O

10mA

≤I

O ≤IMAX

V

O < 5V

V

O ≥5V

-

40

0.8

70

1.5

Adjustable Pin Current

I

ADJ

-

46

100

μA

Adjustable Pin Current Change

ΔI

ADJ

3V

≤V

I - VO ≤40V

10mA

≤I

O ≤IMAX PD ≤PMAX

-

2.0

5

μA

Reference Voltage

V

REF

3V

≤V

IN - VO ≤40V

10mA

≤I

O ≤IMAX

P

D ≤PMAX

1.20

1.25

1.30

V

Maximum Output Current

I

O(MAX)

V

I - VO ≤15V, PD ≤PMAX

V

I - VO ≤40V, PD ≤PMAX

1.0

2.0

0.3

-

A

Ripple Rejection

RR

V

O = 10V, f = 120Hz

without CADJ

C

ADJ = 10μF (Note2)

66

60

75

-

dB

3-Terminal Positive Adjustable Regulator

◆

Output Current In Excess of 1. 0A

◆

Output Adjustable Between 1. 2V and 37V

◆

Internal Thermal Overload Protection

◆

Internal Short Circuit Current Limiting

◆

Output Transistor Safe Operating Area Compensation

◆

TO-252 Package

Product specification

Absolute Maximum Ratings

Electrical Characteristics

( Ta = 25 C)

O

( Ta = 25 C)

O

Description

This monolithic integrated circuit is an adjustable

3-terminal positive voltage regulator designed to

supply more than 1.0A of load current with

anoutput voltage adjustable over a 1.2 to 37V.

It employs internal current limiting, thermal

shut-down and safe area compensation.

Note:

1. Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken

into account separately. Pulse testing with low duty is used. (PMAX = 15W)

2. CADJ, when used, is connected between the adjustment pin and ground.

(VI - VO= 5 V, IO= 0.5 A, 0

o

≤

C

TJ ≤+ 125

oC, I

MAX = 1.5A,PDMAX = 15W, unless otherwise specified)

TO-252

1

2

3

1. Adjust

2. Vout

3. Vin

TIGER ELECTRONIC CO.,LTD

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