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MIC2207YML

更新时间： 2024-11-20 22:06:47
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
21页 789K
描述
3mmx3mm 2MHz 3A PWM Buck Regulator

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中文翻译

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MIC2207YML 数据手册

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MIC2207  
3mmx3mm 2MHz 3A PWM Buck  
Regulator  
General Description  
Features  
The Micrel MIC2207 is a high efficiency PWM buck  
(step-down) regulators that provides up to 3A of  
output current. The MIC2207 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 3A  
>94% efficiency  
100% maximum duty cycle  
Adjustable output voltage option down to 1V  
Ultra-fast transient response  
The low on-resistance internal p-channel MOSFET  
of the MIC2207 allows efficiencies over 94%,  
reduces external components count and eliminates  
the need for an expensive current sense resistor.  
Ultra-small external components  
Stable with a 1µH inductor and a 4.7µF  
output capacitor  
The MIC2207 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.  
•
•
•
Fully integrated 3A MOSFET switch  
Micropower shutdown  
The MIC2207 is available in the exposed pad 3mm x  
3mm MLF-12L package with a junction operating  
range from –40°C to +125°C.  
Thermal shutdown and current limit  
protection  
•
•
Pb-free 3mm x 3mm MLF-12L package  
–40°C to +125°C junction temperature range  
Applications  
•
•
•
•
•
5V or 3.3V Point of Load Conversion  
Telecom/Networking Equipment  
Set Top Boxes  
Storage Equipment  
Video Cards  
____________________________________________________________________________________________________  
Typical Application  
MIC2207  
3.3VOUT Efficiency  
96  
4.5VIN  
94  
MIC2207  
92  
5VIN  
90  
5.5VIN  
88  
86  
84  
82  
80  
0
0.5  
1
1.5  
2
2.5  
3
OUTPUT CURRENT (A)  
3A 2MHz Buck Regulator  
Micrel, Inc • 2180 Fortune Drive • San Jose, Ca 95131 • USA • tel +1 (408) 944-0800 • fax +1 (408) 474-1000 • http://www.micrel.com  
M9999-040705  
www.micrel.com  
April 2005  
1234567...21

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MIC2207YML 替代型号

型号 品牌 替代类型 描述 数据表
MIC4720YMLTR MICREL

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