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MPQ28261DL-LF-Z PDF预览

MPQ28261DL-LF-Z

更新时间: 2024-01-25 01:48:13
品牌 Logo 应用领域
芯源 - MPS 开关光电二极管输出元件
页数 文件大小 规格书
20页 1000K
描述
Switching Regulator, Current-mode, 500kHz Switching Freq-Max, PDSO14, 3 X 4 MM, ROHS COMPLIANT, MO-229VEED-5, QFN-14

MPQ28261DL-LF-Z 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVSON,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:15 weeks风险等级:1.73
其他特性:ADJUSTABLE OUTPUT MODE FROM 0.603V TO 18V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 VJESD-30 代码:R-PDSO-N14
JESD-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:125 °C
最低工作温度:-40 °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
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:500 kHz
温度等级:AUTOMOTIVE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

MPQ28261DL-LF-Z 数据手册

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MPQ28261  
21V, 3A, 500kHz Synchronous  
Step-Down Converter  
DESCRIPTION  
FEATURES  
The MPQ28261 is a synchronous, rectified,  
step-down, switch-mode converter with built-in  
120mΩ high-side MOSFET and 20mΩ low-side  
MOSFET. It offers a very compact solution to  
achieve a continuous 3A output current over a  
wide input supply range, with excellent load and  
line regulation. Its synchronous mode operation  
increases its efficiency over its output current  
load range, and uses a fixed 500kHz switching  
frequency.  
Wide 4.5V-to-21V Operating Input Range  
3A Maximum Continuous Output Current  
Integrated 120mΩ High-Side and 20mΩ  
Low-Side Power MOSFETs  
1% Reference Voltage Accuracy  
Up to 85% Efficiency (for Drops of 12V to  
1.2V)  
Fixed 500kHz Switching Frequency  
External Soft-Start  
PG Output  
Current mode operation provides a fast  
transient response and improves loop  
stabilization. Full protection features include  
over-current protection and thermal shut down.  
OCP and Thermal Shutdown  
Output Adjustable from 0.603V to 18V  
Available in a 3mm x 4mm 14-pin QFN  
Package.  
The MPQ28261 has an external SS pin to  
program the soft-start time and power-good  
signal output.  
APPLICATIONS  
DSL Modems  
Cable Modems  
Set-Top Boxes  
Telecom  
The MPQ28261 requires a minimal number of  
readily-available standard external components  
and is available in a space saving 3mmx4mm  
14-pin QFN package.  
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  
4.5V-21V  
VIN  
1
6
IN  
BST  
VCC  
R10  
C3  
0.1uF  
C1  
22uF  
MPQ28261  
L1  
2.8uH  
VOUT  
1.2V/3A  
100K  
2,3,4,5  
9
SW  
PG  
R1  
10K  
11  
Rt  
VCC  
C4  
0.1uF  
24K  
8
C2  
47uF  
FB  
SS  
ON/OFF  
10  
7
EN  
R2  
10K  
GND  
12,13  
AGND  
14  
C7  
47nF  
MPQ28261 Rev. 1.12  
11/6/2015  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2015 MPS. All Rights Reserved.  
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