Datasheet > LM7915

LM7915

更新时间： 2024-11-23 11:36:59

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描述
3-Terminal 1A Positive Voltage Regulator

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LM7915 数据手册

TIGER ELECTRONIC CO.,LTD

Product specification

3-Terminal 1A Positive Voltage Regulator

LM7915

GENERAL DESCRIPTION

The LM7915 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

-35

-15

-2.2

Output Voltage

Peak Current

Operating Temperature

Range

T_OPR

T_STG

0~125

^oC

TO-220

Storage Temperature Range

-65~150

( Ta = 25 ^OC)

ELECTRICAL CHARACTERISTICS

(Refer to test circuit, Io = -500mA, Vi = -23V, Ci= 2.2uF, Co=1.0uF unless otherwise specified)

Parameter

Output Voltage

Symbol

Test Conditions

V_I= -18V to -30V

Min

Typ

Max Unit

V_O

-14.55

-15

-12

-15.45

-300

V_I= -17.5V to -30V

Line Regulation (Note1)

Regline

V_I= -20V to -26V

-6.0

-12

-4

-150

I_O= -5.0mA to-1.5A

-300

-150

-6

Load Regulation (Note1)

Quiescent Current

Regload

I_O=-250mA to -750mA

T_J=+25 ^oC

I_Q

-3

I_O= -5mA to -1A

-0.5

Quiescent Current Change

V_I= -18.5V to -30V

f = 120Hz, V_O= -18V to -28V

I_O= -1A, T_J=+25 ^oC

V_I= -35V, T_A=+25 ^oC

T_J=+25 ^oC

-1.0

Ripple Rejection

Dropout Voltage

Short Circuit Current

Peak Current

V_Drop

I_SC

-2

-300

I_PK

-2.2

中文翻译

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