Datasheet > MIC2203

MIC2203

更新时间： 2024-09-14 14:53:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
13页	2730K
描述
The MIC2203 is a high efficiency 1MHz PWM synchronous buck switching regulator. The MIC2203 feat

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MIC2203 数据手册

MIC2203

High Efficiency 1MHz Synchronous

Buck Regulator

General Description

Features

The Micrel MIC2203 is a high efficiency 1MHz PWM

synchronous buck switching regulator. The MIC2203

features low noise constant frequency PWM

operation with a low dynamic supply current of

<1mA. The low noise and efficient operation both

make the MIC2203 well suited for sensitive RF, and

audio power applications.

• Input voltage range: 2.3V to 5.5V

• Output voltage adjustable down to 0.5V

• 300mA output current

• Constant 1MHz PWM switching frequency

• > 95% efficiency

• < 1mA switching supply current

• < 350µA static quiescent current

• < 1µA shutdown current

The MIC2203 operates from 2.3V to 5.5V input and

can supply over 300mA of output current with output

voltages down to 0.5V. Additionally, the MIC2203

can be synchronized to an external clock, or multiple

MIC2203s can easily be daisy-chained with the

SYNCLOCK feature.

• All-ceramic capacitors

• Easily synchronized to external clock

• SYNCLOCK feature to daisy chain multiple

devices

The MIC2203 has a high loop bandwidth with

corresponding ultra fast transient response times.

This reduces the output capacitor size, and is very

useful when powering applications that require fast

dynamic response such as CPU cores and RF

circuitry in high performance cellular phones and

PDAs.

• Thermal shutdown and current limit protection

• 10 pin MSOP, and 3mm x 3mm MLF-10L package

options

• –40ºC to +125ºC junction temperature range

Applications

The MIC2203 is available in 10-pin MSOP and

3mm x 3mm MLF™-10L package options with an

operating junction temperature range from –40ºC to

125ºC.

• 802.11 WLAN modules

• MD players

• MP3 players

_____________________________________________________________________

Typical Application

10µH

1.8V

300mA

MIC2203BMM

2.3V to 5.5V

10k

SYNC_IN

2.2µF

1µF

SYNC_OUT

10nF

3.83k

High Efficiency Buck Regulator

MicroLead Frame and MLF are trademarks of Amkor Technologies.

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax +1 (408) 474-1000 • http://www.micrel.com

M9999-120604

(408) 955-1690

December 2004

12 3 4 5 6 7...13

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与MIC2203相关器件

型号	品牌	获取价格	描述	数据表
MIC2203BML	MICREL	获取价格	High Efficiency 1MHz Synchronous Buck Regulator
MIC2203BML	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 1.5A, 1200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF
MIC2203BMLTR	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 1.5A, 1200kHz Switching Freq-Max, PDSO10, 3 X 3 MM, MLF
MIC2203BMM	MICREL	获取价格	High Efficiency 1MHz Synchronous Buck Regulator
MIC2203BMMTR	MICROCHIP	获取价格	Switching Regulator, Voltage-mode, 1.5A, 1200kHz Switching Freq-Max, PDSO10, MSOP-10
MIC2203BMMTR	MICREL	获取价格	Switching Regulator, Voltage-mode, 1.5A, 1200kHz Switching Freq-Max, PDSO10, MSOP-10
MIC2203YML	MICREL	获取价格	High Efficiency 1MHz Synchronous Buck Regulator
MIC2203YMLTR	MICROCHIP	获取价格	1.5A SWITCHING REGULATOR, 1200kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, LEAD FREE, MLF-10
MIC2203YMM	MICREL	获取价格	High Efficiency 1MHz Synchronous Buck Regulator
MIC2203YMMTR	MICROCHIP	获取价格	1.5A SWITCHING REGULATOR, 1200kHz SWITCHING FREQ-MAX, PDSO10, LEAD FREE, MSOP-10

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