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MP2188GQA

更新时间： 2024-11-15 01:16:07
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
17页 1098K
描述
Dual 3A, 5.5V, 1.2MHz, COT Synchronous Step Down Switchers With Auto Output Discharge

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MP2188GQA 数据手册

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MP2188  
Dual 3A, 5.5V, 1.2MHz, COT  
Synchronous Step Down Switchers  
With Auto Output Discharge  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2188 is a monolithic, step-down, switch-  
mode dual converter with internal power  
MOSFETs. It can achieve up to 3A continuous  
output current from a 2.5V–to-5.5V input  
voltage with excellent load and line regulation.  
The output voltages of two channels are 1.1V  
and 1.8V respectively.  
•
•
•
Wide 2.5V-to-5.5V Operating Input Range  
Fixed Output Voltages: 1.1V & 1.8V  
Adjustable Output Voltage from 0.8V by  
external FB Resistor  
100% Duty Cycle in Dropout  
Up to 3A Output Current  
Low IQ: 80µA  
60mΩ and 30mΩ Internal Power MOSFET  
Switches  
Default 1.2MHz Switching Frequency  
EN and Power-Good for Power Sequencing  
Cycle-by-Cycle Over-Current Protection  
Auto Discharge at Power-Off  
Short-Circuit Protect 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 protections include  
cycle-by-cycle current limiting and thermal  
shutdown.  
•
•
•
•
•
•
The  
MP2188  
is  
available  
in  
small  
2.2mmx2.6mm QFN-16 package and requires  
only a minimal number of readily available  
standard external components.  
•
Available in a 2.2mm x 2.6mm QFN-16  
Package  
The MP2188 is ideal for a wide range of  
applications including high-performance DSPs,  
FPGAs, smartphones, portable instruments,  
and DVD drivers.  
APPLICATIONS  
•
•
•
•
Solid State Drives(SSD)  
Low Voltage I/O System Power  
Handheld/Battery-powered Systems  
Wireless/Networking Cards  
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green  
status, please visit MPS website under Products, Quality Assurance page.  
“MPS” and “The Future of Analog IC Technology” are registered trademarks of  
Monolithic Power Systems, Inc.  
TYPICAL APPLICATION  
Efficiency vs. I  
OUT  
VIN=5V  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
V
OUT2=1.8V  
VOUT1=1.1V  
0.01  
0.1  
1
10  
IOUT (A)  
MP2188 Rev. 1.01  
2/2/2016  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2016 MPS. All Rights Reserved.  
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