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MP2158A

更新时间： 2024-11-15 01:16:07
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芯源 - MPS /
页数 文件大小 规格书
14页 469K
描述
1A, 6V, 1.5MHz, 17uA IQ, COT Synchronous Step-Down Converter in Ultra-Small 2x1.5mm QFN-8

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MP2158A 数据手册

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MP2158A  
1A, 6V, 1.5MHz, 17μA IQ, COT  
Synchronous Step-Down Converter  
in Ultra-Small 2x1.5mm QFN-8  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2158A is a monolithic step-down,  
switch-mode converter with built-in internal  
power MOSFETs. It achieves 1A of continuous  
output current from a 2.5V to 6V input voltage  
with excellent load and line regulation. The  
output voltage can be regulated as low as 0.6V.  
Very Low IQ of 17μA  
Default 1.5MHz Switching Frequency  
1.5% VFB Accuracy  
EN and Power Good for Power Sequencing  
Wide 2.5V to 6V Operating Input Range  
Output Adjustable from 0.6V  
Up to 1A of Output Current  
100% Duty Cycle in Dropout  
120mΩ and 90mΩ Internal Power MOSFET  
Switches  
Cycle-by-Cycle Over-Current Protection  
Short-Circuit Protection with Hiccup Mode  
Stable with Low ESR Output Ceramic  
Capacitors  
The constant-on-time control scheme provides  
fast transient response and eases loop  
stabilization. Fault condition protection includes  
cycle-by-cycle current limiting and thermal  
shutdown.  
The MP2158A is available in a small QFN-8  
(1.5mmx2mm) package and requires only a  
minimal number of readily available, standard,  
external components.  
Available in a QFN-8 (1.5mmx2mm)  
Package  
The MP2158A is ideal for a wide range of  
applications, including high-performance DSPs,  
FPGAs, PDAs, and portable instruments.  
APPLICATIONS  
Wireless/Networking Cards  
Portable Instruments  
Battery-Powered Devices  
Low Voltage I/O System Power  
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.  
For MPS green status, please visit the MPS website under Quality Assurance.  
“MPS” and “The Future of Analog IC Technology” are registered trademarks of  
Monolithic Power Systems, Inc.  
TYPICAL APPLICATION  
L1  
VIN  
VOUT  
1 H  
2.5V to 6V  
1.2V/ 1A  
SW  
VIN  
C1  
10 F  
OUT  
C2  
10 F  
R1  
200k  
MP2158A  
EN  
PG  
EN  
PG  
FB  
R2  
200k  
AGND PGND  
MP2158A Rev. 1.02  
6/30/2016  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2016 MPS. All Rights Reserved.  
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