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电源管理 DC-DC MP1482 手册

更新时间:2019-11-08 17:16:49 大小:276K 上传用户:aosilang321查看TA发布的资源 标签:电源管理DC-DC 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

DC-DC   同步STEP-TOWN   IC资料  

部分文件列表

文件名 大小
MP1482.pdf 276K

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MP1482  
2A, 18V Synchronous Rectified  
Step-Down Converter  
The Future of Analog IC Technology  
FEATURES  
DESCRIPTION  
2A Output Current  
The MP1482 is a monolithic synchronous buck  
regulator. The device integrates two 130m  
MOSFETs, and provides 2A of continuous load  
current over a wide input voltage of 4.75V to  
18V. Current mode control provides fast  
transient response and cycle-by-cycle current  
limit.  
Wide 4.75V to 18V Operating Input Range  
Integrated 130mPower MOSFET Switches  
Output Adjustable from 0.923V to 15V  
Up to 93% Efficiency  
Programmable Soft-Start  
Stable with Low ESR Ceramic Output Capacitors  
Fixed 340kHz Frequency  
Cycle-by-Cycle Over Current Protection  
Input Under Voltage Lockout  
8–Pin SOIC  
An adjustable soft-start prevents inrush current  
at turn-on, and in shutdown mode the supply  
current drops to 1µA.  
This device, available in an 8-pin SOIC  
package, provides a very compact solution with  
minimal external components.  
APPLICATIONS  
Distributed Power Systems  
Networking Systems  
FPGA, DSP, ASIC Power Supplies  
Green Electronics/ Appliances  
Notebook Computers  
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  
Load Current  
INPUT  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
V
= 3.3V  
OUT  
2
1
IN  
BS  
3
5
7
8
V
= 2.5V  
EN  
SS  
SW  
OUT  
MP1482  
FB  
GND  
COMP  
4
6
0
0.5  
1.0  
1.5  
2.0  
2.5  
LOAD CURRENT (A)  
MP1482 Rev. 1.31  
7/9/2012  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2012 MPS. All Rights Reserved.  
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