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D01605T-472 PDF预览

D01605T-472

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
芯源 - MPS 转换器
页数 文件大小 规格书
8页 281K
描述
1MHz, 800mA Synchronous Step-Down Converter

D01605T-472 数据手册

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TM  
MP2105  
1MHz, 800mA Synchronous  
Step-Down Converter  
TM  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2105 is a 1MHz constant frequency,  
current mode, PWM step-down converter. The  
device integrates a main switch and a  
synchronous rectifier for high efficiency without  
an external Schottky diode. It is ideal for  
powering portable equipment that runs from a  
single cell Lithium-Ion (Li+) battery. The  
MP2105 can supply 800mA of load current from  
a 2.5V to 6V input voltage. The output voltage  
can be regulated as low as 0.6V. The MP2105  
can also run at 100% duty cycle for low dropout  
applications.  
High Efficiency: Up to 95%  
1MHz Constant Switching Frequency  
800mA Available Load Current  
2.5V to 6V Input Voltage Range  
Output Voltage as Low as 0.6V  
100% Duty Cycle in Dropout  
Current Mode Control  
Short Circuit Protection  
Thermal Fault Protection  
<0.1µA Shutdown Current  
Space Saving 5-Pin TSOT23 Package  
APPLICATIONS  
The MP2105 is available in a low profile (1mm)  
5-pin, TSOT package.  
Cellular and Smart Phones  
Microprocessors and DSP Core Supplies  
PDAs  
MP3 Players  
Digital Still and Video Cameras  
Portable Instruments  
EVALUATION BOARD REFERENCE  
Board Number  
Dimensions  
EV2105DJ-00A  
2.0”X x 2.0”Y x 0.5”Z  
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic  
Power Systems, Inc.  
TYPICAL APPLICATION  
Efficiency vs  
Load Current  
100  
V
= 3.3V  
V
IN  
OUTPUT  
1.8V  
800mA  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
4
3
5
INPUT  
IN  
SW  
FB  
2.5V to 6V  
MP2105  
1
= 4.2V  
IN  
EN  
OFF ON  
GND  
2
MP2105_TAC_S01  
10  
100  
LOAD CURRENT (mA)  
1000  
MP2105-EC01  
MP2105 Rev. 1.3  
5/11/2006  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2006 MPS. All Rights Reserved.  
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