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MIC4723

更新时间: 2024-02-11 22:54:24
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器开关
页数 文件大小 规格书
19页 515K
描述
3A 2MHz Integrated Switch Buck Regulator

MIC4723 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HTSSOP,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.71其他特性:ALSO HAS OUTPUT VOLTAGE ADJUSTABLE DOWN TO 1V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:5.5 V
最小输入电压:3 V标称输入电压:3.6 V
JESD-30 代码:S-PDSO-G10JESD-609代码:e3
长度:3 mm湿度敏感等级:3
功能数量:1端子数量:10
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:11 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.04 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:2200 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn) - annealed端子形式:GULL WING
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3 mm
Base Number Matches:1

MIC4723 数据手册

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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 to 5.5V supply voltage  
2.0MHz PWM mode  
Output current to 3A  
Up to 94% efficiency  
100% maximum duty cycle  
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.  
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  
–40°C to +125°C junction temperature range  
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® package 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  
96  
94  
92  
90  
88  
86  
84  
82  
80  
78  
76  
4.5V  
IN  
5V  
IN  
5.5V  
IN  
3A 2MHz Buck Regulator  
0
0.5  
1
1.5  
2
2.5  
3
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  
M9999-052307-A  
May 2007  
1

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