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MP28254EL-LF-Z

更新时间： 2024-02-20 01:46:28
品牌 Logo 应用领域
芯源 - MPS 开关光电二极管
页数 文件大小 规格书
14页 360K
描述
Switching Regulator, Current-mode, 575kHz Switching Freq-Max, PDSO14, 3 X 4 MM, ROHS COMPLIANT, MO-229VGED-3, QFN-14

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MP28254EL-LF-Z 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Not Recommended零件包装代码：SON
包装说明：HVSON,针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：8 weeks
风险等级：5.16Is Samacsys：N
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-N14JESD-609代码：e3
长度：4 mm湿度敏感等级：1
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
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）：260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端子面层：Matte Tin (Sn)
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：40
宽度：3 mmBase Number Matches：1

MP28254EL-LF-Z 数据手册

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MP28254  
High Efficiency 4A, 21V, 500kHz  
Synchronous Step down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP28254 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 4A continuous  
output current over a wide input supply range  
with excellent load and line regulation. The  
MP28254 has synchronous mode operation for  
higher efficiency over output current load range.  
•
•
•
•
Wide 4.5V to 21V Operating Input Range  
4A Output Current  
Low Rds(on) Internal Power MOSFETs  
Proprietary Switching Loss Reduction  
Technique  
High Efficiency Synchronous Mode Operation  
Fixed 500kHz Switching Frequency  
Sync from 300kHz to 2MHz External Clock  
Internal Compensation  
•
•
•
•
•
•
•
•
Current mode operation provides fast transient  
response and eases loop stabilization.  
Integrated Bootstrap Diode  
OCP Protection and Thermal Shutdown  
Output Adjustable from 0.805V  
Available in a 3mm x 4mm 14-Pin QFN  
Package  
Full protection features include OCP and  
thermal shut down.  
The MP28254 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  
Efficiency  
VOUT=1.2V  
100  
V
=5V  
IN  
1
6
V
=12V  
IN  
VIN  
IN  
BST  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
C4  
0.1uF  
C1  
22uF  
V
=21V  
IN  
2, 3  
4, 5  
VOUT  
1.2V@4A  
SW  
FB  
10  
VCC  
MP28254  
C3  
0.1uF  
R1  
5K  
R3  
100K  
C2  
47uF  
8
9
7
Rt  
25K  
PG  
EN  
PG  
R2  
10K  
EN/SYNC  
GND  
0
1
2
3
4
11, 12, 13, 14  
OUTPUT CURRENT (A)  
MP28254 Rev. 1.01  
5/15/2012  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2012 MPS. All Rights Reserved.  
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