Datasheet > MIC22400_11

MIC22400_11

更新时间： 2024-01-21 07:07:00

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器开关
页数	文件大小	规格书
28页	1629K
描述
4A Integrated Switch Synchronous Buck Regulator with Frequency Programmable up to 4MHz

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MIC22400_11 数据手册

MIC22400

4A Integrated Switch Synchronous

Buck Regulator with Frequency

Programmable up to 4MHz

General Description

Features

The Micrel MIC22400 is a high-efficiency, 4A integrated

switch synchronous buck (step-down) regulator. The

MIC22400 is optimized for highest efficiency, achieving

over 90% efficiency while still switching at 1MHz over a

broad load range. The ultra-high-speed control loop keeps

the output voltage within regulation even under extreme

transient load swings commonly found in FPGAs and low-

voltage ASICs. The output voltage can be adjusted down

to 0.7V to address all low-voltage power needs. The

MIC22400 gives a full range of sequencing and tracking

options. The EN/DLY pin combined with the Power-On-

Reset (POR) pin allows multiple outputs to be sequenced

in any way on turn-on and turn-off. The Ramp Control™

(RC) pin allows the device to be connected to another

MIC22400 family of products to keep the output voltages

within a certain ΔV on start-up.

• Input voltage range: 2.6V to 5.5V

• Output voltage adjustable down to 0.7V

• Output load current up to 4A

• Full sequencing and tracking ability

• Power-On-Reset (POR)

• Efficiency > 90% across a broad load range

• Programmable frequency 300kHz to 4MHz

• Easy Ramp Control™ (RC) compensation

• Ultra-fast transient response

• 100% maximum duty cycle

• Fully-integrated MOSFET switches

• Micropower shutdown

• Thermal-shutdown and current-limit protection

• 20-pin 3mm x 4mm MLF^®

The MIC22400 is available in a 20-pin 3mm x 4mm MLF^®

and thermally-enhanced 20-pin ePad TSSOP with a

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

• 20-pin ePad TSSOP

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

Data sheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

Applications

• High power density point-of-load conversion

• Servers and routers

• DVD recorders

• Computing peripherals

• Base stations

• FPGAs, DSP and low-voltage ASIC power

Typical Application

MIC22400 4A Synchronous Buck Regulator

Sequencing & Tracking

Ramp Control is a trademark of Micrel, Inc.

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

June 2011 M9999-061511-F

12 3 4 5 6 7...28

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与MIC22400_11相关器件

型号	品牌	获取价格	描述	数据表
MIC22400YML	MICREL	获取价格	4A Integrated Switch Synchronous Buck Regulator with Frequency Programmable up to 4MHz
MIC22400YMLTR	MICREL	获取价格	暂无描述
MIC22400YML-TR	MICROCHIP	获取价格	7.5A SWITCHING REGULATOR, 4000kHz SWITCHING FREQ-MAX, QCC20
MIC22400YTSE	MICREL	获取价格	4A Integrated Switch Synchronous Buck Regulator with Frequency Programmable up to 4MHz
MIC22400YTSE	MICROCHIP	获取价格	10A SWITCHING REGULATOR, 4000kHz SWITCHING FREQ-MAX, PDSO20
MIC22400YTSETR	MICREL	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,TSSOP,20PIN,PLASTIC
MIC22400YTSE-TR	MICROCHIP	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,TSSOP,20PIN,PLASTIC
MIC22405	MICREL	获取价格	4A Integrated Switch High-Efficiency Synchronous Buck Regulator
MIC22405	MICROCHIP	获取价格	The MIC22405 is a high efficiency, 4A integrated switch synchronous buck (step-down) regul
MIC22405YML	MICREL	获取价格	4A Integrated Switch High-Efficiency Synchronous Buck Regulator

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