Datasheet > LM78XX_95

LM78XX_95

更新时间： 2024-11-23 04:44:11

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
6页	158K
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Voltage Regulators

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LM78XX_95 数据手册

February 1995

LM78XX Series Voltage Regulators

General Description

The LM78XX series of three terminal regulators is available

with several fixed output voltages making them useful in a

wide range of applications. One of these is local on card

regulation, eliminating the distribution problems associated

with single point regulation. The voltages available allow

these regulators to be used in logic systems, instrumenta-

tion, HiFi, and other solid state electronic equipment. Al-

though designed primarily as fixed voltage regulators these

devices can be used with external components to obtain

adjustable voltages and currents.

of external components. It is not necessary to bypass the

output, although this does improve transient response. Input

bypassing is needed only if the regulator is located far from

the filter capacitor of the power supply.

For output voltage other than 5V, 12V and 15V the LM117

series provides an output voltage range from 1.2V to 57V.

Features

Output current in excess of 1A

Internal thermal overload protection

The LM78XX series is available in an aluminum TO-3 pack-

age which will allow over 1.0A load current if adequate heat

sinking is provided. Current limiting is included to limit the

peak output current to a safe value. Safe area protection for

the output transistor is provided to limit internal power dissi-

pation. If internal power dissipation becomes too high for

the heat sinking provided, the thermal shutdown circuit

takes over preventing the IC from overheating.

No external components required

Output transistor safe area protection

Internal short circuit current limit

Available in the aluminum TO-3 package

Voltage Range

LM7805C

LM7812C

LM7815C

12V

15V

Considerable effort was expanded to make the LM78XX se-

ries of regulators easy to use and mininize the number

Schematic and Connection Diagrams

Metal Can Package

TO-3 (K)

Aluminum

TL/H/7746–2

Bottom View

Order Number LM7805CK,

LM7812CK or LM7815CK

See NS Package Number KC02A

Plastic Package

TO-220 (T)

TL/H/7746–3

Top View

Order Number LM7805CT,

LM7812CT or LM7815CT

See NS Package Number T03B

TL/H/7746–1

1995 National Semiconductor Corporation

TL/H/7746

RRD-B30M115/Printed in U. S. A.

12 3 4 5 6

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与LM78XX_95相关器件

型号	品牌	获取价格	描述	数据表
LM78XX-1A		获取价格	EffectIveness up to 96 %, output 1 A, switch mode 3 - D DC-DC Module
LM78XXA	FAIRCHILD	获取价格	3-Terminal 1A Positive Voltage Regulator
LM78XXE	FAIRCHILD	获取价格	3-Terminal 1A Positive Voltage Regulator
LM78XXG-T2Q-R	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXG-T2Q-T	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXG-T92-B	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXG-T92-K	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXG-TA3-T	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXG-TF3-T	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR
LM78XXL-T2Q-R	UTC	获取价格	3-TERMINAL 1A POSITIVE VOLTAGE REGULATOR

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