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MP28253

更新时间： 2024-01-13 07:35:34
品牌 Logo 应用领域
芯源 - MPS /
页数 文件大小 规格书
15页 373K
描述
21V, 3A, 500kHz Synchronous Step-down Converter

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MP28253 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Not Recommended零件包装代码：SON
包装说明：QFN-14针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.18
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：21 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：R-PDSO-N14长度：4 mm
功能数量：1端子数量：14
最高工作温度：85 °C最低工作温度：-20 °C
标称输出电压：5 V封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：575 kHz温度等级：OTHER
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

MP28253 数据手册

 浏览型号MP28253的Datasheet PDF文件第2页浏览型号MP28253的Datasheet PDF文件第3页浏览型号MP28253的Datasheet PDF文件第4页浏览型号MP28253的Datasheet PDF文件第5页浏览型号MP28253的Datasheet PDF文件第6页浏览型号MP28253的Datasheet PDF文件第7页 
MP28253  
21V, 3A, 500kHz  
Synchronous Step-down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP28253 is a high frequency synchronous  
rectified step-down switch mode converter with  
built in internal power MOSFETs. It offers a  
very compact solution to achieve 3A continuous  
output current over a wide input supply range  
with excellent load and line regulation. The  
MP28253 operates at high efficiency over a  
wide output current load range.  
•
•
•
•
Wide 4.5V to 21V Operating Input Range  
3A Output Current  
Low RDS(ON) Internal Power MOSFETs  
Proprietary Switching Loss Reduction  
Technique  
Fixed 500kHz Switching Frequency  
External Soft-Start  
Sync from 300kHz to 2MHz External Clock  
Internal Compensation  
Integrated Bootstrap Diode  
Over-Current Protection and Hiccup  
Thermal Shutdown  
Output Adjustable from 0.8V  
Available in 14-pin QFN3x4 Package  
•
•
•
•
•
•
•
•
•
Current mode operation provides fast transient  
response and eases loop stabilization.  
Full protection features include OCP and thermal  
shut down.  
The MP28253 requires a minimum number of  
readily available standard external components  
and is available in a space saving 3mm x 4mm  
14-pin QFN package.  
APPLICATIONS  
•
•
•
•
•
•
Notebook Systems and I/O Power  
Networking Systems  
Digital Set Top Boxes  
Personal Video Recorders  
Flat Panel Television and Monitors  
Distributed Power Systems  
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.  
The information in this datasheet about the product and its associated  
technologies are proprietary and intellectual property of Monolithic Power  
Systems and are protected by copyright and pending patent applications  
TYPICAL APPLICATION （FOR NOTEBOOK）  
1
6
VIN  
IN  
BST  
4.5V-21V  
C1  
MP28253  
9
2,3,4,5  
PG  
PG  
VOUT 1.2V/3A  
SW  
R3  
100k  
R1  
11  
VCC  
4.99k  
Rt  
24k  
8
FB  
SS  
C5  
47nF  
7
R2  
10k  
10  
ON/OFF  
EN/SYNC  
GND AGND  
12,13 14  
MP28253 Rev. 1.02  
12/25/2013  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2013 MPS. All Rights Reserved.  
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