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MP2228

更新时间： 2024-11-04 01:16:07
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
16页 562K
描述
High-Efficiency, 2A, 16V, 800kHz Synchronous, Step-Down Converter

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MP2228 数据手册

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MP2228  
High-Efficiency, 2A, 16V, 800kHz  
Synchronous, Step-Down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2228 is a high-frequency, synchronous,  
rectified, step-down, switch-mode converter  
with built-in power MOSFETs. It offers a very  
compact solution to achieve a 2A continuous  
output current with excellent load and line  
regulation over a wide input supply range. The  
MP2228 has synchronous mode operation for  
higher efficiency over the output current load  
range.  
•
•
6V-to-16V Operating Input Range  
100mΩ/40mΩ Low RDS(ON) Internal Power  
MOSFETs  
High-Efficiency Synchronous Mode  
Operation  
Fixed 800kHz Switching Frequency  
External AAM pin for Power-Save Mode  
Programming  
External Soft-Start  
OCP Protection and Hiccup  
Thermal Shutdown  
Output Adjustable from 0.8V  
Available in an 8-pin TSOT-23 Package  
•
•
•
•
•
•
•
•
Current-mode operation provides fast transient  
response and eases loop stabilization.  
Full protection features include over-current  
protection and thermal shut down.  
APPLICATIONS  
The MP2228 requires a minimal number of  
readily-available standard external components,  
and is available in a space-saving 8-pin  
TSOT23 package.  
•
•
•
•
Notebook Systems and I/O Power  
Digital Set-Top Boxes  
Flat-Panel Television and Monitors  
Distributed Power Systems  
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green  
status, please visit MPS website under Quality Assurance. “MPS” and “The  
Future of Analog IC Technology” are Registered Trademarks of Monolithic  
Power Systems, Inc.  
TYPICAL APPLICATION  
R3  
20  
6V - 16V  
2
7
5
3
IN  
VIN  
BST  
SW  
100  
95  
V
=6V  
IN  
MP2228  
90  
85  
80  
75  
70  
65  
60  
55  
50  
3.3V/2A  
VCC  
V
=12V  
IN  
R4  
113k  
R1  
40.2k  
R6  
8.2k  
V
=16V  
1
IN  
AAM  
SS  
8
FB  
R5  
10k  
6
R2  
13k  
GND  
4
C3  
22nF  
0.01  
0.10  
1.00  
10.00  
OUTPUT CURRENT (A)  
MP2228 Rev. 1.1  
8/20/2013  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2013 MPS. All Rights Reserved.  
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