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LM317K

Adjustable Voltage Regulator

Inchange Semiconductor 

Adjustable Voltage Regulator

LM317K

INCHANGE

‹ Features

·With TO-3 package

·1,Adjust 2, Input 3, Output

·Output voltage range :1.2V to 37V

·Output current in excess of 1.5A

‹ Absolute maximum rating

Symbol

Vi -Vo

IO

PD

TOP

TSTG

Parameter

Input-output voltage differential

Output current

Power dissipation

Operating junction temperature

Storage temperature

Value

Unit

40

V

1.5

A

Internally limited

W

0~+125

℃

-65~+125

℃

‹ Electrical characteristics

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

Symbol

Parameter

Test conditions

Min Typ. Max Unit

VREF

△VO

△VO

IADJ

△IADJ

△IADJ

SVR

Reference voltage

Line regulation

Load regulation

Adjustment pin current

Adjustment pin current

Adjustment pin current

Ripple rejection

Vi -Vo=5V

IO=40mA to 500mA

1.2 1.25 1.3

V

Vi -Vo=3V to 40V

IO=500mA

0.05 ％/ V

Vi -Vo=5V

IO=10mA to 1.5A

1.0 ％

Vi -Vo=5V

IO=40mA to 500mA

100 μA

Vi -Vo=3V to 40V

IO=40mA to 500mA

5 μA

Vi -Vo=5V

IO=10mA to 1.5A

5 μA

Vo=10V; IO=500mA;Vi -Vo=5V

f=100Hz, CADJ=10μF

66

dB

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