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MIC2204YML

更新时间： 2024-11-05 10:57:23
品牌 Logo 应用领域
麦瑞 - MICREL 转换器开关光电二极管输出元件
页数 文件大小 规格书
11页 150K
描述
High-Efficiency 2MHz Synchronous Buck Converter

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中文翻译

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MIC2204YML 数据手册

 浏览型号MIC2204YML的Datasheet PDF文件第2页浏览型号MIC2204YML的Datasheet PDF文件第3页浏览型号MIC2204YML的Datasheet PDF文件第4页浏览型号MIC2204YML的Datasheet PDF文件第5页浏览型号MIC2204YML的Datasheet PDF文件第6页浏览型号MIC2204YML的Datasheet PDF文件第7页 
MIC2204  
Micrel, Inc.  
MIC2204  
High-Efficiency 2MHz Synchronous Buck Converter  
General Description  
Features  
The Micrel MIC2204 is a high-efficiency, 2MHz PWM syn-  
chronous buck switching regulator. Power conversion effi-  
ciency of above 95% is easily obtainable over a wide range  
of applications. A proprietary internal compensation tech-  
nique ensures stability with the smallest possible inductor  
and ceramic output capacitor.  
• Input voltage range: 2.3V to 5.5V  
• Output down to 1V/ 600mA  
• 2MHz PWM operation  
• Ultra-fast transient response (typical 200kHz GBW)  
• Internal compensation  
• All ceramic capacitors  
• >95% efficiency  
The MIC2204 operates from 2.3V to 5.5V input and features  
internal power MOSFETs that can supply over 600mA of  
outputcurrentwithoutputvoltagesdownto1V. TheMIC2204  
implementsaconstant2MHzpulse-width-modulation(PWM)  
controlschemewhichreducesspuriousnoiseinsensitiveRF  
and communication applications. Additionally, the MIC2204  
canbesynchronizedtoanexternalclock,ormultipleMIC2204s  
can easily be daisy-chained with the SYNCLOCK feature.  
TheMIC2204hasahighbandwidthloop(typ. 200kHz) which  
allows ultra-fast transient response times. This is very useful  
when powering applications that require fast dynamic re-  
sponses, such as the CPU cores and RF circuitry in high-  
performance cellular phones and PDAs.  
• Fully integrated MOSFET switches  
• Easily synchronized to external clock  
• SYNCLOCK feature to daisy-chain multiple 2204s  
• <340µA quiescent current  
• Logic controlled micropower shutdown  
• Thermal shutdown and current limit protection  
• 10-pin MSOP and 3mm×3mm MLF™-10L  
• –40°C to +125°C junction temperature range  
Applications  
• High-efficiency portable power  
• Cellular phones  
The MIC2204 is available in 10-pin MSOP and 3mm × 3mm  
MLF™-10L package options with an operating junction tem-  
perature range from –40°C to 125°C .  
• PDAs  
• 802.11 WLAN power supplies  
• RF power supplies  
• Li Ion battery powered applications  
Typical Application  
Efficiency  
4.7µH  
vs. Output Current  
3.3V  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
500mA  
MIC2204BMM  
1
2
3
4
5
10  
9
4.2VIN  
5VIN  
3.6VIN  
2.3V to 6V  
SYNC_IN  
SYNC_OUT  
EN  
4.7µF  
8
7
6
10nF  
3.3VOUT  
0
100 200 300 400 500  
OUTPUT CURRENT (mA)  
Adjustable Output Synchronous Buck Converter  
MLF and MicroLeadFrame are trademarks of Amkor Technology, 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  
M9999-042205  
April 2005  
1
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MIC2204YML 替代型号

型号 品牌 替代类型 描述 数据表
MIC2204BMLTR MICREL

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 Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF-1
MIC2204BML MICREL

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 High-Efficiency 2MHz Synchronous Buck Converter

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