Datasheet > MIC4723_08

MIC4723_08

更新时间： 2024-01-13 17:17:36

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器开关
页数	文件大小	规格书
20页	536K
描述
3A 2MHz Integrated Switch Buck Regulator

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数据手册

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MIC4723_08 数据手册

MIC4723

3A 2MHz Integrated Switch

Buck Regulator

General Description

Features

The Micrel MIC4723 is a high efficiency PWM buck (step-

down) regulator that provides up to 3A of output current.

The MIC4723 operates at 2.0MHz and has proprietary

internal compensation that allows a closed loop bandwidth

of over 200KHz.

•

2.7/3.0V to 5.5V supply voltage

2.0MHz PWM mode

Output current to 3A

Up to 94% efficiency

100% maximum duty cycle

Adjustable output voltage option down to 1V

Ultra-fast transient response

Ultra-small external components

Stable with a 1µH inductor and a 4.7µF output

capacitor

Fully integrated 3A MOSFET switch

Micropower shutdown

Thermal shutdown and current limit protection

Pb-free 12-pin 3mm x 3mm MLF^®package

Pb-free 10-pin ePAD MSOP package

–40°C to +125°C junction temperature range

The low on-resistance internal p-channel MOSFET of the

MIC4723 allows efficiencies over 92%, reduces external

components count and eliminates the need for an

expensive current sense resistor.

The MIC4723 operates from 2.7V to 5.5V input and the

output can be adjusted down to 1V. The devices can

operate with a maximum duty cycle of 100% for use in low-

dropout conditions.

•

The MIC4723 is available in the exposed pad 12-pin

3mm x 3mm MLF^®and 10-pin ePAD MSOP packages with

a junction operating range from –40°C to +125°C.

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Applications

• FPGA/DSP/ASIC applications

• General point of load

• Broadband communications

• DVD/TV recorders

• Point of sale

• Printers/Scanners

• Set top boxes

• Computing peripherals

• Video cards

___________________________________________________________________________________________________________

Typical Application

MIC4723

3.3V

Efficiency

OUT

4.5V

5.5V

3A 2MHz Buck Regulator

0.5

1.5

2.5

OUTPUT CURRENT (A)

MLF and MicroLeadFrame are registered 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

M9999-060308-E

June 2008

12 3 4 5 6 7...20

中文翻译

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与MIC4723_08相关器件

型号	品牌	获取价格	描述	数据表
MIC4723YML	MICREL	获取价格	3A 2MHz Integrated Switch Buck Regulator
MIC4723YML	MICROCHIP	获取价格	11A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO12
MIC4723YMLTR	MICROCHIP	获取价格	11A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO12, 3 X 3 MM, GREEN, MLF-12
MIC4723YMME	MICREL	获取价格	3A 2MHz Integrated Switch Buck Regulator
MIC4723YMME-TR	MICROCHIP	获取价格	11A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10
MIC4724	MICREL	获取价格	3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input
MIC4724	MICROCHIP	获取价格	The MIC4724 is a high efficiency PWM buck (step-down) regulator that provides up to 3A o
MIC4724YMME	MICREL	获取价格	3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input
MIC4724YMME	MICROCHIP	获取价格	SWITCHING REGULATOR, 2000kHz SWITCHING FREQ-MAX, PDSO10
MIC4724YMMETR	MICROCHIP	获取价格	11A SWITCHING REGULATOR, 2000kHz SWITCHING FREQ-MAX, PDSO10, GREEN, MSOP-10

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