5秒后页面跳转
MIC4721 PDF预览

MIC4721

更新时间: 2024-10-28 04:22:47
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 815K
描述
1.5A 2MHz Integrated Switch Buck Regulator

MIC4721 数据手册

 浏览型号MIC4721的Datasheet PDF文件第2页浏览型号MIC4721的Datasheet PDF文件第3页浏览型号MIC4721的Datasheet PDF文件第4页浏览型号MIC4721的Datasheet PDF文件第5页浏览型号MIC4721的Datasheet PDF文件第6页浏览型号MIC4721的Datasheet PDF文件第7页 
MIC4721  
1.5A 2MHz Integrated Switch  
Buck Regulator  
General Description  
Features  
The Micrel MIC4721 is a high efficiency PWM buck (step-  
down) regulators that provides up to 1.5A of output  
current. The MIC4721 operates at 2MHz and has  
proprietary internal compensation that allows a closed loop  
bandwidth of over 200KHz.  
2.7 to 5.5V supply voltage  
2MHz PWM mode  
Output current to 1.5A  
Up to 94% efficiency  
100% maximum duty cycle  
The low on-resistance internal p-channel MOSFET of the  
MIC4721 allows efficiencies up to 94%, 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 1.5A MOSFET switch  
Micropower shutdown  
The MIC4721 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.  
Power Good pin  
Thermal shutdown and current limit protection  
Pb-free 10-pin MSOP package  
–40°C to +125°C junction temperature range  
The MIC4721 is available in the 10-pin MSOP 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  
5V to 3.3V Efficiency  
IN  
O
94  
92  
90  
88  
86  
84  
82  
80  
78  
76  
1.5A 2MHz Buck Regulator  
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6  
OUTPUT CURRENT (A)  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-052907-A  
May 2007  
1

与MIC4721相关器件

型号 品牌 获取价格 描述 数据表
MIC4721YMM MICREL

获取价格

1.5A 2MHz Integrated Switch Buck Regulator
MIC4721YMMTR MICREL

获取价格

11A SWITCHING REGULATOR, 2200kHz SWITCHING FREQ-MAX, PDSO10, LEAD FREE, MSOP-10
MIC4722 MICREL

获取价格

3mm x 3mm 2.7MHz 3A PWM Buck Regulator
MIC4722 MICROCHIP

获取价格

The MIC4722 is a high efficiency PWM buck (step-down) regulator that provides up to 3A o
MIC4722_10 MICREL

获取价格

3mm x 3mm 2.7MHz 3A PWM Buck Regulator
MIC4722YML MICREL

获取价格

3mm x 3mm 2.7MHz 3A PWM Buck Regulator
MIC4722YMLTR MICREL

获取价格

暂无描述
MIC4722YML-TR MICROCHIP

获取价格

11A SWITCHING REGULATOR, 3000kHz SWITCHING FREQ-MAX, PDSO12
MIC4723 MICREL

获取价格

3A 2MHz Integrated Switch Buck Regulator
MIC4723 MICROCHIP

获取价格

The MIC4723 is a high efficiency PWM buck (step-down) regulator that provides up to 3A o