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MP2120 PDF预览

MP2120

更新时间: 2024-11-14 12:36:47
品牌 Logo 应用领域
芯源 - MPS 稳压器开关
页数 文件大小 规格书
11页 367K
描述
2.5A, 5.5V Synchronous Step-Down Switching Regulator

MP2120 数据手册

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MP2120  
2.5A, 5.5V Synchronous  
Step-Down Switching Regulator  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
2.5A Output Current  
The MP2120 is an internally compensated  
1.5MHz fixed frequency PWM synchronous  
step-down regulator. MP2120 operates from a  
2.7V to 5.5V input and generates an output  
voltage as low as 0.8V.  
Input Operation Range: 2.7V to 5.5V  
All Ceramic Capacitor Design  
Up to 95% Efficiency  
1.5MHz Fixed Switching Frequency  
Adjustable Output from 0.8V to 0.9xVIN  
Internal Soft-Start  
Frequency Synchronization Input  
Power Good Output  
Cycle-by-Cycle Current Limiting  
Hiccup Short Circuit Protection  
Thermal Shutdown  
The MP2120 integrates an 80mhigh-side  
switch and a 60msynchronous rectifier for  
high efficiency without an external Schottky  
diode. With peak current mode control and  
internal compensation, the MP2120 based  
solution delivers a very compact footprint with a  
minimum component count.  
3mm x 3mm 10-lead QFN Package  
The MP2120 is available in a small 3mm x 3mm  
10-lead QFN package.  
APPLICATIONS  
µP/ASIC/DSP/FPGA Core and I/O Supplies  
Printers and LCD TVs  
Network and Telecom Equipment  
Point of Load Regulators  
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic  
Power Systems, Inc.  
TYPICAL APPLICATION  
Efficiency vs.  
Output Current  
95  
V
IN  
C3  
10nF  
IN  
POK  
BS  
SW  
90  
1.2  
V
POK  
OUT  
5V to 1.8V  
5V to 3.3V  
1.8V / 2.5A  
85  
80  
75  
70  
MP2120  
5V to 2.5V  
EN/SYNC  
GND  
FB  
OFF ON  
0
0.5  
1
1.5  
2
2.5  
OUTPUT CURRENT (A)  
MP2120 Rev. 0.92  
9/7/2011  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2011 MPS. All Rights Reserved.  
1

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