LM317

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R101-009.V



ABSOLUTE MAXIMUM RATINGS (TA=25C, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

Input - Output Voltage Difference

VIN-VOUT

40

V

Power Dissipation

PD

Internal limited

Junction Temperature

TJ

+150

C

Operating Temperature

TOPR

-40 ~ +125

C

Storage Temperature

TSTG

-40 ~ +150

C

Note: Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device

could be damaged beyond Absolute maximum ratings.



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

TO-252

θJA

112

C/W

TO-220/TO-220F

TO-263/TO-263-3

65

SOT-223

165

SOP-8

190

Junction to Case

TO-252

θJC

12

C/W

TO-220/TO-263

TO-263-3

5

TO-220F

7.8

SOT-223

23

SOP-8

45



ELECTRICAL CHARACTERISTICS

(VIN-VOUT=5V, IOUT=10mA, TA=25C, unless otherwise specified.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Line Regulation

VOUT/VOUT 3V≦VIN-VOUT≦40V

0.01 0.04

%/V

Load Regulation

VOUT

10mA≦IOUT≦1A

VOUT≦5V

5

25

mV

VOUT≧5V

0.1

0.5

%

Adjustable Pin Current

IADJ

50

100

μA

Adjustable Pin Current Change

IADJ

3V≦VIN-VOUT≦40V,

10mA≦IOUT≦1A, PD≦20W

0.2

5

μA

Reference Voltage

VREF

3V≦VIN-VOUT≦40V,

10mA≦IOUT≦1A, PD≦20W

1.20

1.25 1.30

V

Temperature Stability

TMIN≦TJ≦TMAX

0.7

%/VOUT

Minimum Load Current for Regulation

IL(MIN)

VIN-VOUT=40V

3.5

10

mA

Maximum Output Current

IO(MAX)

VIN-VOUT=40V, PD≦20W

0.2

0.3

A

RMS Noise vs. %of VOUT

eN

10HZ≦f≦10KHZ

0.003

%/VOUT

Ripple Rejection

RR

VOUT=10V,f=120HZ

CADJ=0

65

dB

CADJ=10μF66

80

Note: CADJ is connected between Adjust pin and Ground.