Datasheet > LM7818J_17

LM7818J_17

更新时间： 2024-11-19 01:18:23

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描述
3-Terminal 1A Positive Voltage Regulator

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数据手册

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LM7818J_17 数据手册

TIGER ELECTRONIC CO.,LTD

Product specification

LM7818J

3-Terminal 1A Positive Voltage Regulator

GENERAL DESCRIPTION

The LM7818 series of three terminal positive regulators are available in the TO-220 package and with

several fixed output voltages, making them useful in a wide range of applications. Each type employs

internal current limiting, thermal shut down and safe operating area protection, making it essentially

indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although

designed primarily as fixed voltage regulators, these devices can be used with external components to

obtain adjustable voltages and currents.

ABSOLUTE MAXIMUM RATINGS ( Ta = 25 ^OC)

Parameter

Input Voltage

Symbol

Typ

Unit

V_I

V_O

I_PK

18.0

2.2

Output Voltage

Peak Current

Operating Temperature

Range

^oC

1: IN

2: GND

3: OUT

T_OPR

T_STG

0~125

Storage Temperature Rang

-65~150

( Ta = 25 ^OC)

ELECTRICAL CHARACTERISTICS

(Refer to test circuit, Io = 500mA, Vi = 27V, Ci= 0.33uF, Co=0.1uF unless otherwise specified)

Parameter

Output Voltage

Symbol

Test Conditions

V_I= 21V to 33V

Min

Typ

Max Unit

V_O

17.46

18.0 18.54

V_I= 21V to 33V

360

—

Line Regulation (Note1)

Load Regulation (Note1)

Regline

Regload

V_I= 24V to 30V

180

360

180

—

I_O= 5.0mA to1.5A

I_O=250mA to 750mA

T_J=+25 ^oC

Quiescent Current

Ripple Rejection

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

I_Q

V_Drop

r_O

5.2

f = 120Hz, V_O= 22V to 32V

I_O= 1A, T_J=+25 ^oC

f = 1KHz

—

0.022

I_SC

V_I= 35V, T_A=+25 ^oC

T_J=+25 ^oC

250

2.2

—

I_PK

中文翻译

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