Datasheet > MIC2204_05

MIC2204_05

更新时间： 2024-09-15 10:57:23

品牌	Logo	应用领域
麦瑞 - MICREL		转换器
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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MIC2204_05 数据手册

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

500mA

MIC2204BMM

4.2V_IN

5V_IN

3.6V_IN

2.3V to 6V

SYNC_IN

SYNC_OUT

4.7µF

10nF

3.3V_OUT

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

12 3 4 5 6 7...11

中文翻译

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与MIC2204_05相关器件

型号	品牌	获取价格	描述	数据表
MIC2204BML	MICREL	获取价格	High-Efficiency 2MHz Synchronous Buck Converter
MIC2204BML	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF-1
MIC2204BMLTR	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF-1
MIC2204BMLTR	MICREL	获取价格	Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF-1
MIC2204BMM	MICREL	获取价格	High-Efficiency 2MHz Synchronous Buck Converter
MIC2204BMM	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, MSOP-10
MIC2204BMMTR	MICREL	获取价格	暂无描述
MIC2204BMMTR	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 2A, 2200kHz Switching Freq-Max, PDSO10, MSOP-10
MIC2204YML	MICREL	获取价格	High-Efficiency 2MHz Synchronous Buck Converter
MIC2204YML	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10

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