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MP4458DQT

更新时间： 2024-01-02 19:14:35
品牌 Logo 应用领域
芯源 - MPS 转换器
页数 文件大小 规格书
16页 390K
描述
1A, 4MHz, 36V Step-Down Converter

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中文翻译

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MP4458DQT 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Active零件包装代码：SON
包装说明：HVSON,针数：10
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.18
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 36V模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE最大输入电压：36 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：S-PDSO-N10长度：3 mm
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：2.2 A封装主体材料：PLASTIC/EPOXY
封装代码：HVSON封装形状：SQUARE
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：0.8 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：4800 kHz温度等级：INDUSTRIAL
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

MP4458DQT 数据手册

 浏览型号MP4458DQT的Datasheet PDF文件第2页浏览型号MP4458DQT的Datasheet PDF文件第3页浏览型号MP4458DQT的Datasheet PDF文件第4页浏览型号MP4458DQT的Datasheet PDF文件第5页浏览型号MP4458DQT的Datasheet PDF文件第6页浏览型号MP4458DQT的Datasheet PDF文件第7页 
MP4458  
1A, 4MHz, 36V  
Step-Down Converter  
The Future of Analog IC Technology  
FEATURES  
DESCRIPTION  
•
•
•
•
120μA Quiescent Current  
The MP4458 is a high frequency step-down  
switching regulator with an integrated internal  
high-side high voltage power MOSFET. It  
provides 1 A output with current mode control  
for fast loop response and easy compensation.  
Wide 3.8V to 36V Operating Input Range  
300mΩ Internal Power MOSFET  
Up to 4MHz Programmable Switching  
Frequency  
•
•
•
Ceramic Capacitor Stable  
Internal Soft-Start  
Precision Current Limit without a Current  
Sensing Resistor  
The wide 3.8V to 36V input range  
accommodates  
a
variety of step-down  
applications, including those in automotive  
systems. A 120µA operational quiescent current  
is suitable for use in battery-powered  
applications.  
•
•
•
Up to 95% Efficiency  
Output Adjustable from 0.8V to 30V  
Available in 10-Pin 3x3mm TQFN Package  
The frequency foldback helps prevent inductor  
current runaway during startup and thermal  
shutdown provides reliable, fault tolerant  
operation.  
APPLICATIONS  
•
•
•
•
•
High Voltage Power Conversion  
Automotive Systems  
Industrial Power Systems  
Distributed Power Systems  
Battery Powered Systems  
In some applications, such as AM radio and  
ADSL applications, in which the device is  
sensitive to frequency band, the MP4458 can  
avoid the related EMI problem by setting the  
frequency at 4MHz.  
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 MP4458 is available in thin 10-pin 3mm x 3mm  
TQFN package.  
TYPICAL APPLICATION  
Efficiency vs  
Load Current  
100  
V =5V  
I
90  
80  
70  
60  
50  
40  
30  
20  
4
3
7
5
8, 9  
10  
V
COMP  
EN  
VIN  
BST  
SW  
IN  
V =24V  
I
36V max  
C6  
NS  
V =12V  
I
CONTROL  
C4  
MP4458  
FREQ  
100nF  
1, 2  
6
V
OUT  
5V @ 1A  
10MQ100N  
FB  
GND  
V =3.3V  
O
0
500  
1000  
LOAD CURRENT (mA)  
MP4458 Rev. 1.02  
3/4/2013  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2013 MPS. All Rights Reserved.  
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