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MP28225DL-LF-Z PDF预览

MP28225DL-LF-Z

更新时间： 2024-09-22 07:37:35
品牌 Logo 应用领域
芯源 - MPS 光电二极管
页数 文件大小 规格书
11页 699K
描述
Switching Regulator, Current-mode, 1600kHz Switching Freq-Max, PDSO14, 3 X 4 MM, ROHS COMPLIANT, MO-229VEED-5, QFN-14

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MP28225DL-LF-Z 数据手册

 浏览型号MP28225DL-LF-Z的Datasheet PDF文件第2页浏览型号MP28225DL-LF-Z的Datasheet PDF文件第3页浏览型号MP28225DL-LF-Z的Datasheet PDF文件第4页浏览型号MP28225DL-LF-Z的Datasheet PDF文件第5页浏览型号MP28225DL-LF-Z的Datasheet PDF文件第6页浏览型号MP28225DL-LF-Z的Datasheet PDF文件第7页 
MP28225  
14.5V, 1A, 1.3MHz Synchronous  
Step-Down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP28225 is an internally compensated  
1.3MHz fixed frequency PWM synchronous  
step-down regulator with a 2.5V to 6V bias  
supply (VCC). MP28225 operates from a 3V to  
14.5V input and generates an adjustable output  
voltage from 0.8V to 0.9xVIN at up to 1A load  
current.  
•
•
•
•
•
•
•
•
•
•
•
•
•
1A Output Current  
Input Supply Range: 3V to 14.5V  
All Ceramic Output Capacitors Design  
Up to 95% Efficiency  
1.3MHz Fixed Switching Frequency  
Adjustable Output from 0.8V to 0.9xVIN  
Internal Soft-Start  
Power Okay Pin  
Frequency Synchronization Input  
Thermal Shutdown  
The MP28225 integrates an 80mΩ high-side  
switch and an 80mΩ synchronous rectifier for  
high efficiency without an external Schottky  
diode. With peak current mode control and  
internal compensation, it is stable with a output  
ceramic capacitor and a small inductor. Fault  
Cycle-by-Cycle Current Limiting  
Hiccup Short Circuit Protection  
14-Lead, 3mm x 4mm QFN Package  
protection  
includes  
hiccup  
short-circuit  
protection, cycle-by-cycle current limiting and  
thermal shutdown. Other features include  
frequency synchronization and internal soft-  
start.  
APPLICATIONS  
•
•
•
•
µP/ASIC/DSP/FPGA Core and I/O Supplies  
Printers and LCD TVs  
Network and Telecom Equipment  
Point of Load Regulators  
The MP28225 is available in a small 3mm x  
4mm 14-lead QFN packages.  
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic  
Power Systems, Inc.  
TYPICAL APPLICATION  
Efficiency vs.  
Load Current  
95  
85  
75  
65  
5,10  
IN  
VCC  
7
BS  
8
4,11  
14  
SW  
EN/SYNC  
POK  
FB  
OFF ON  
13  
9
GND  
1,3,12  
V
=5V, V  
=5V, V  
=3.3V  
=1.8V  
IN  
OUT  
V
V
V
IN  
IN  
IN  
OUT  
55  
45  
=12V, V  
=12V, V  
=3.3V  
OUT  
=1.8V  
OUT  
0
250  
500  
750  
1000  
LOAD CURRENT (mA)  
MP28225 Rev. 1.0  
3/11/2011  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2011 MPS. All Rights Reserved.  
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