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LM7805CT PDF预览

LM7805CT

更新时间: 2024-11-19 22:47:03
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8页 150K
描述
Series Voltage Regulators

LM7805CT 数据手册

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May 2000  
LM78XX  
Series Voltage Regulators  
put, although this does improve transient response. Input by-  
passing is needed only if the regulator is located far from the  
filter capacitor of the power supply.  
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 ad-  
justable voltages and currents.  
For output voltage other than 5V, 12V and 15V the LM117  
series provides an output voltage range from 1.2V to 57V.  
Features  
n Output current in excess of 1A  
n Internal thermal overload protection  
n No external components required  
n Output transistor safe area protection  
n Internal short circuit current limit  
n Available in the aluminum TO-3 package  
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.  
Voltage Range  
LM7805C  
LM7812C  
LM7815C  
5V  
12V  
15V  
Considerable effort was expanded to make the LM78XX se-  
ries of regulators easy to use and minimize the number of  
external components. It is not necessary to bypass the out-  
Connection Diagrams  
Metal Can Package  
TO-3 (K)  
Plastic Package  
TO-220 (T)  
Aluminum  
DS007746-3  
DS007746-2  
Top View  
Bottom View  
Order Number LM7805CT,  
LM7812CT or LM7815CT  
See NS Package Number T03B  
Order Number LM7805CK,  
LM7812CK or LM7815CK  
See NS Package Number KC02A  
© 2000 National Semiconductor Corporation  
DS007746  
www.national.com  

LM7805CT 替代型号

型号 品牌 替代类型 描述 数据表
LM340T-5.0 TI

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