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R1170HXXXX PDF预览

R1170HXXXX

更新时间: 2022-01-18 16:45:00
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20页 363K
描述
Power Management ICs

R1170HXXXX 数据手册

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Technical Notes on External Components and Typical Application  
Phase Compensation  
In these ICs, phase compensation is made with the output capacitor for securing stable operation  
even if the load current is varied. For this purpose, use as much as 10µF Capacitor as CL.  
If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be  
unstable. Evaluate your circuit with considering frequency characteristics. Further, refer to the  
Typical Characteristics No.12.  
Mounting on PCB  
Make VDD and GND lines sufficient. If their impedance is high, current flows, the noise pick-up or  
unstable operation may result. Further use as much as 10µF Capacitor between VDD pin and GND  
pin as close as possible.  
Set an Output capcitor between VOUT pin and GND pin for phase compensation as close as possible.  
(Refer to the example of typical application)  
Example of the typical application of R1170XxxxB  
CE  
R1170Xxx1B  
GND  
VDD  
VOUT  
IN  
OUT  
CI  
CL  
CI=10µF(Ceramic), CL=10µF(Ceramic)  
Rev. 1.11  
-7-  

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