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MP1570DN-LF PDF预览

MP1570DN-LF

更新时间: 2024-09-10 04:19:31
品牌 Logo 应用领域
芯源 - MPS 光电二极管
页数 文件大小 规格书
11页 393K
描述
Switching Regulator, Current-mode, 3A, 380kHz Switching Freq-Max, PDSO8, LEAD FREE, SOIC-8

MP1570DN-LF 数据手册

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MP1570  
3A, 23V, 340KHz Synchronous Rectified  
Step-Down Converter  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP1570 is a monolithic synchronous buck  
regulator. The device integrates 100m  
MOSFETS that provide 3A continuous load  
current over a wide operating input voltage of  
4.75V to 23V. Current mode control provides  
fast transient response and cycle-by-cycle  
current limit.  
3A Output Current  
Wide 4.75V to 23V Operating Input Range  
Integrated 100mPower MOSFET Switches  
Output Adjustable from 1.23V to 20V  
Up to 95% Efficiency  
Programmable Soft-Start  
Stable with Low ESR Ceramic Output Capacitors  
Fixed 340KHz Frequency  
Cycle-by-Cycle Over Current Protection  
Input Under Voltage Lockout  
Thermally Enhanced 8-Pin SOIC Package  
An adjustable soft-start prevents inrush current  
at turn-on. In shutdown mode, the output is  
actively discharged by transferring energy in the  
output capacitor to the input capacitor, dropping  
the supply current to 1μA.  
APPLICATIONS  
This device, available in an 8-pin SOIC  
package, provides a very compact system  
solution with minimal reliance on external  
components.  
Distributed Power Systems  
Pre-Regulator for Linear Regulators  
Notebook Computers  
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of  
Monolithic Power Systems, Inc.  
EVALUATION BOARD REFERENCE  
Board Number  
Dimensions  
EV1570DN-00A  
2.0”X x 1.5”Y x 0.5”Z  
TYPICAL APPLICATION  
C5  
10nF  
Efficiency vs.  
INPUT  
4.75V to 23V  
Load Current  
100  
V
=9V  
IN  
95  
90  
85  
80  
75  
70  
65  
60  
2
IN  
1
BS  
SW  
OUTPUT  
3.3V  
3A  
7
3
5
EN  
V
=12V  
IN  
MP1570  
8
V
=23V  
IN  
SS  
FB  
COMP  
GND  
4
6
D1  
B130  
C3  
3.3nF  
(optional)  
C6  
(optional)  
V
=5V  
OUT  
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5  
LOAD CURRENT (A)  
MP1570-EC02  
MP1570_TAC01  
MP1570 Rev. 1.6  
10/10/2007  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2007 MPS. All Rights Reserved.  
1

MP1570DN-LF 替代型号

型号 品牌 替代类型 描述 数据表
MP1570DN-LF-Z MPS

功能相似

Switching Regulator, Current-mode, 3A, 380kHz Switching Freq-Max, PDSO8, LEAD FREE, SOIC-8
MP1570DN MPS

功能相似

3A, 23V, 340KHz Synchronous Rectified Step-Down Converter

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