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78L05 PDF预览

78L05

更新时间: 2024-11-29 22:22:23
品牌 Logo 应用领域
美国国家半导体 - NSC 三端稳压器
页数 文件大小 规格书
12页 214K
描述
3-Terminal Positive Regulators

78L05 数据手册

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January 2000  
LM78LXX Series  
3-Terminal Positive Regulators  
tection for the output transistors is provided to limit internal  
power dissipation. If internal power dissipation becomes too  
high for the heat sinking provided, the thermal shutdown cir-  
cuit takes over preventing the IC from overheating.  
General Description  
The LM78LXX series of three terminal positive regulators is  
available with several fixed output voltages making them  
useful in a wide range of applications. When used as a zener  
diode/resistor combination replacement, the LM78LXX usu-  
ally results in an effective output impedance improvement of  
two orders of magnitude, and lower quiescent current. These  
Features  
n LM78L05 in micro SMD package  
±
%
5 over the temperature  
n Output voltage tolerances of  
range  
n Output current of 100 mA  
regulators can provide local on card regulation, eliminating  
the distribution problems associated with single point regula-  
tion. The voltages available allow the LM78LXX to be used in  
logic systems, instrumentation, HiFi, and other solid state  
electronic equipment.  
n Internal thermal overload protection  
n Output transistor safe area protection  
n Internal short circuit current limit  
n Available in plastic TO-92 and plastic SO-8 low profile  
packages  
The LM78LXX is available in the plastic TO-92 (Z) package,  
the plastic SO-8 (M) package and a chip sized package  
(8-Bump micro SMD) using National’s micro SMD package  
technology. With adequate heat sinking the regulator can de-  
liver 100 mA output current. Current limiting is included to  
limit the peak output current to a safe value. Safe area pro-  
n No external components  
n Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V  
Connection Diagrams  
SO-8 Plastic (M)  
(Narrow Body)  
(TO-92)  
Plastic Package (Z)  
DS007744-3  
DS007744-2  
Bottom View  
Top View  
micro SMD Marking Orientation  
8-Bump micro SMD  
DS007744-24  
Top View  
(Bump Side Down)  
DS007744-33  
Top View  
© 2000 National Semiconductor Corporation  
DS007744  
www.national.com  

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