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MP2493

更新时间： 2024-11-12 17:01:59
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
12页 1191K
描述
1.5A，36V，130KHz低EMI降压变换器，具有可调输出电流限制

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中文翻译

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MP2493 数据手册

 浏览型号MP2493的Datasheet PDF文件第2页浏览型号MP2493的Datasheet PDF文件第3页浏览型号MP2493的Datasheet PDF文件第4页浏览型号MP2493的Datasheet PDF文件第5页浏览型号MP2493的Datasheet PDF文件第6页浏览型号MP2493的Datasheet PDF文件第7页 
MP2493  
2A, 36V, Low EMI Step-Down Converter  
with Programmable Output Current Limit  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2493 is a monolithic step-down switch  
mode converter with a programmable output  
current limit. It achieves 2A continuous output  
current over a wide input supply range with  
excellent load and line regulation.  
•
•
•
•
Wide 4.5V to 36V Operating Input Range  
Programmable up to 2A Output Current  
Output Adjustable from 0.8V to 15V  
Programmable Output Current Limit without  
power loss  
The maximum output current can be  
programmed by sensing current through the  
inductor DC resistance (DCR) or an accurate  
sense resistor.  
•
•
0.25Ω Internal Power MOSFET Switch  
Stable with Low ESR Output Ceramic  
Capacitors  
Up to 95% Efficiency  
Fixed 130kHz Frequency with low EMI  
Thermal Shutdown  
Cycle-by-Cycle Over Current Protection  
Available in 8-Pin SOIC and 8-pin SOIC8E  
Packages  
•
•
•
•
•
Fault condition protection includes cycle-by-cycle  
current limiting and thermal shutdown.  
The MP2493 requires a minimum number of  
readily available standard external components.  
The MP2493 is available in 8-pin SOIC, and 8-  
pin SOICE packages.  
APPLICATIONS  
•
•
•
USB Power Supplies  
Automotive Cigarette Lighter Adapters  
Power Supply for Linear Chargers  
All MPS parts are lead-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  
Efficiency  
V
=5V  
OUT  
5V  
100  
R8  
0
U1  
7
R4  
1k  
BST  
92  
84  
76  
68  
60  
5
6
6V - 36V  
1
ISN  
VIN  
VIN  
+
V
=12V  
IN  
C6  
47nF  
R9  
20k  
MP2493  
ISP  
C10  
4.7nF  
R3  
4.7k  
R6  
4.02k  
GND  
8
SW  
FB  
VOUT  
GND  
R7  
200k  
D1  
3A/40V  
3
4
+
SS  
GND  
2
R5  
0
C7  
150pF  
0
0.4  
0.8  
1.2  
1.6  
2
OUTPUT CURRENT (A)  
MP2493 Rev. 1.0  
2/12/2014  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2014 MPS. All Rights Reserved.  
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