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06035C102KAT2A PDF预览

06035C102KAT2A

更新时间: 2024-11-05 12:53:11
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器电容器PC
页数 文件大小 规格书
19页 1106K
描述
4MHz, 2A, 100% Duty Cycle Buck Regulator with HyperLight Load® and Power Good

06035C102KAT2A 数据手册

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MIC23163/4  
4MHz, 2A, 100% Duty Cycle Buck Regulator  
with HyperLight Load® and Power Good  
General Description  
Features  
The MIC23163/4 is  
a
high-efficiency, 4MHz, 2A,  
Input voltage: 2.7V to 5.5V  
100% duty cycle  
2A output current  
Up to 93% peak efficiency  
85% typical efficiency at 1mA  
Programmable soft-start with pre-bias start-up capability  
Power Good (PG) Indicator  
4MHz PWM operation in continuous mode  
Ultra-fast transient response  
synchronous buck regulator with HyperLight Load® (HLL)  
mode and maximum 100% duty cycle. HLL provides very-  
high efficiency at light loads and ultra-fast transient  
response which makes the MIC23163/4 perfectly suited for  
supplying processor core voltages. An additional benefit of  
this proprietary architecture is very low output ripple  
voltage throughout the entire load range with the use of  
small output capacitors. The tiny 2.0mm × 2.0mm DFN  
package saves precious board space and requires only  
three external components.  
Low ripple output voltage  
Fully-integrated MOSFET switches  
0.1µA shutdown current  
The MIC23163/4 is designed for use with a very small  
0.47µH inductor and 10µF output capacitor that enables a  
total solution size, less than 1mm height.  
Thermal shutdown and current-limit protection  
10-pin 2.0mm × 2.0mm Thin DFN  
–40°C to +125°C junction temperature range  
Disable pull down 180Ω (MIC23164 only)  
The MIC23163/4 has a very low quiescent current of 33µA  
and achieves as high as 85% efficiency at 1mA. At higher  
loads, the MIC23163/4 provides a constant switching  
frequency around 4MHz while achieving peak efficiencies  
up to 93%. The MIC23164 incorporates an active  
discharge feature that switches an 180FET to ground to  
discharge the output when the part is disabled.  
Applications  
Cellular modems  
Mobile handsets  
Portable media/MP3 players  
Portable navigation devices (GPS)  
WiFi/WiMax/WiBro modules  
Digital cameras  
The MIC23163/4 is available in 10-pin 2.0mm × 2.0mm  
DFN package with an operating junction temperature  
range from –40°C to +125°C.  
Datasheets and support documentation are available on  
Micrel’s web site at: www.micrel.com.  
Wireless LAN cards  
Typical Application  
HyperLight Load is a registered trademark of Micrel, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
Revision 2.0  
June 29, 2013  

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