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DC-DC芯片MP2145规格书

更新时间:2019-11-01 14:45:41 大小:1M 上传用户:jadehugh查看TA发布的资源 标签:MP2145DC-DC芯片 下载积分:2分 评价赚积分 (如何评价?) 收藏 评论(0) 举报

资料介绍

MP2145规格书

DC-DC芯片,比较主流的芯片,封装小,供电压范围大,易懂。

部分文件列表

文件名 大小
MP2145.pdf 1M

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MP2145  
5.5V, 6A, 1.2MHz, High-Efficiency, 40μA IQ  
Constant On-Time  
Synchronous, Step-Down Switcher  
DESCRIPTION  
FEATURES  
The MP2145 is a monolithic, step-down, switch-  
mode converter with internal power MOSFETs. It  
can achieve up to 6A continuous output current  
from a 2.8V-to-5.5V input voltage with excellent  
load and line regulation. The output voltage can  
be regulated to as low as 0.6V.  
Up to 6A Output Current  
Wide 2.8V-to-5.5V Operating Input Range  
20mΩ and 12mΩ Internal Power MOSFETs  
40µA Quiescent Current  
1.2MHz Fixed Switching Frequency  
100% Duty Cycle in Dropout  
1% Feedback Accuracy  
Constant-on-time control provides a fast transient  
response and eases loop stabilization. Fault  
condition protections include cycle-by-cycle  
current limiting and thermal shutdown.  
External Mode Control  
External VCON Control  
Adjustable Output from 0.6V  
1.5ms Internal SS Time with Pre-Bias Startup  
Cycle-by-Cycle Over Current Protection  
Short Circuit Protection with Hiccup Mode  
Stable with Low-ESR Output Ceramic  
Capacitors  
Thermal Shutdown  
Available in a 2mm×3mm QFN Package  
Output Discharge Function  
The MP2145 is available in a small QFN2×3mm  
package and requires only a minimal number of  
readily-available, standard, external components.  
The MP2145 is ideal for a wide range of  
applications, including storage (SSD, HDD), high-  
performance DSPs, FPGAs, and distributed  
power systems.  
APPLICATIONS  
Storage (SSD, HDD)  
Portable Instruments  
Battery-Powered Devices  
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  
0.47uH  
2.8V to 5.5V  
1.2V/6A  
SW  
VIN  
C2  
C3  
22uF 22uF  
OUT  
C1  
22uF  
R1  
200k  
MP2145  
EN  
EN  
PG  
FB  
R2  
PG  
200k  
Ramp  
Ramp  
MODE/  
VCON  
MODE/  
VCON  
GND  
MP2145 Rev. 1.11  
12/20/2016  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2016 MPS. All Rights Reserved.  
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