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MP2148GQD-15 PDF预览

MP2148GQD-15

更新时间： 2024-11-15 00:58:27
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芯源 - MPS /
页数 文件大小 规格书
20页 702K
描述
1A Synchronous Step-down Converter with 11uA Iq in Ultra-small 1x1.5mm QFN

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MP2148GQD-15 数据手册

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MP2148  
1A Synchronous Step-down Converter  
with 11µA Iq in Ultra-small 1x1.5mm QFN  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2148 is a monolithic, step-down, switch-  
mode converter with built-in internal power  
MOSFETs. It achieves 1A continuous output  
current from a 2.3V-to-5.5V input voltage with  
excellent load and line regulation. The output  
voltage can be regulated to as low as 0.6V.  
•
•
•
•
•
•
•
•
Low IQ: 11μA  
2.2MHz Switching Frequency  
EN for Power Sequencing  
Power Good Only for Fixed Output Version  
Wide 2.3V-to-5.5V Operating Input Range  
Output Adjustable from 0.6V  
Up to 1A Output Current  
120mΩ and 80mΩ Internal Power MOSFET  
Switches  
Output Discharge  
The  
Constant-On-Time  
control  
scheme  
provides fast transient response and eases loop  
stabilization. Fault protections include cycle-by-  
cycle current limiting and thermal shutdown.  
•
•
•
•
100% Duty Cycle  
The MP2148 is available in an ultra-small QFN-  
6 (1.0mmx1.5mm) package and requires a  
minimal number of readily available standard  
external components.  
Short-Circuit Protection with Hiccup Mode  
Stable with Low ESR Output Ceramic  
Capacitors  
Available in a QFN-6 (1.0mmx1.5mm)  
Package  
•
The MP2148 is ideal for a wide range of  
applications including high performance DSPs,  
wireless power, portable and mobile devices,  
and other low-power systems.  
APPLICATIONS  
•
•
•
•
Wireless/Networking Cards  
Portable and Mobile Devices  
Battery Powered /Wearable 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 MPS website under Quality Assurance.  
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks  
of Monolithic Power Systems, Inc.  
TYPICAL APPLICATION  
L1  
1μH  
VIN  
5V  
VOUT  
1.2V/1A  
SW  
VIN  
OUT  
C2  
10μF  
C1  
10μF  
R1  
200kΩ  
MP2148  
EN  
FB  
EN  
R2  
200kΩ  
GND  
MP2148 Rev. 1.11  
5/25/2015  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2015 MPS. All Rights Reserved.  
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