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LM3490IM5X-15

更新时间： 2024-11-22 22:51:55
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
10页 294K
描述
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator with Logic-Controlled ON/OFF

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LM3490IM5X-15 数据手册

 浏览型号LM3490IM5X-15的Datasheet PDF文件第2页浏览型号LM3490IM5X-15的Datasheet PDF文件第3页浏览型号LM3490IM5X-15的Datasheet PDF文件第4页浏览型号LM3490IM5X-15的Datasheet PDF文件第5页浏览型号LM3490IM5X-15的Datasheet PDF文件第6页浏览型号LM3490IM5X-15的Datasheet PDF文件第7页 
June 1999  
LM3490  
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage  
Regulator with Logic-Controlled ON/OFF  
General Description  
Key Specifications  
n 30V maximum input for operation  
The LM3490 is an integrated linear voltage regulator. It fea-  
tures operation from an input as high as 30V and a guaran-  
teed maximum dropout of 1.2V at the full 100 mA load. Stan-  
dard packaging for the LM3490 is the 5-lead SOT-23  
n 1.2V guaranteed maximum dropout over full load and  
temperature ranges  
n 100 mA guaranteed load current  
package.  
A logic-controlled ON/OFF feature makes the  
±
n
5% guaranteed output voltage tolerance over full load  
LM3490 ideal for powering subsystems ON and OFF as  
needed.  
and temperature ranges  
n −40 to +125˚C junction temperature range for operation  
The 5, 12, and 15V members of the LM3490 series are in-  
tended as tiny alternatives to industry standard LM78LXX  
series and similar devices. The 1.2V quasi low dropout of  
LM3490 series devices makes them a nice fit in many appli-  
cations where the 2 to 2.5V dropout of LM78LXX series de-  
vices precludes their (LM78LXX series devices) use.  
Features  
n 3.3, 5, 12, and 15V versions available  
n Logic-controlled ON/OFF  
n Packaged in the tiny 5-lead SOT-23 package  
The LM3490 series features a 3.3V member. The SOT pack-  
aging and quasi low dropout features of the LM3490 series  
converge in this device to provide a very nice, very tiny 3.3V,  
100 mA bias supply that regulates directly off the system  
Applications  
n Tiny alternative to LM78LXX series and similar devices  
±
n Tiny 5V 5% to 3.3V, 100 mA converter  
±
5V 5% power supply.  
n Post regulator for switching DC/DC converter  
n Bias supply for analog circuits  
Typical Application Circuit  
DS100071-2  
Connection Diagram  
DS100071-1  
Top View  
SOT-23 Package  
5-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package  
Package Code MA05B(Note 1)  
© 1999 National Semiconductor Corporation  
DS100071  
www.national.com  
1234567...10

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