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LM3150MH

更新时间： 2024-09-29 12:19:23
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
26页 1088K
描述
LM3150 SIMPLE SWITCHER CONTROLLER, 42V Synchronous Step-Down

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LM3150  
www.ti.com  
SNVS561D –SEPTEMBER 2008–REVISED MARCH 2011  
®
LM3150 SIMPLE SWITCHER CONTROLLER, 42V Synchronous Step-Down  
Check for Samples: LM3150  
1
FEATURES  
DESCRIPTION  
The LM3150 SIMPLE SWITCHER® Controller is an  
easy to use and simplified step down power controller  
capable of providing up to 12A of output current in a  
typical application. Operating with an input voltage  
range of 6V-42V, the LM3150 features an adjustable  
output voltage down to 0.6V. The switching frequency  
is adjustable up to 1 MHz and the synchronous  
architecture provides for highly efficient designs. The  
LM3150 controller employs a Constant On-Time  
(COT) architecture with a proprietary Emulated Ripple  
Mode (ERM) control that allows for the use of low  
ESR output capacitors, which reduces overall solution  
size and output voltage ripple. The Constant On-Time  
(COT) regulation architecture allows for fast transient  
response and requires no loop compensation, which  
reduces external component count and reduces  
design complexity.  
PowerWise® Step-down Controller  
6V to 42V Wide Input Voltage Range  
Adjustable Output Voltage Down to 0.6V  
2
•
•
•
•
Programmable Switching Frequency up to 1  
MHz  
•
•
•
•
•
•
•
•
•
No Loop Compensation Required  
Fully WEBENCH® Enabled  
Low External Component Count  
Constant On-Time Control  
Ultra-fast Transient Response  
Stable with Low ESR Capacitors  
Output Voltage Pre-bias Startup  
Valley Current Limit  
Programmable Soft-start  
Fault protection features such as thermal shutdown,  
under-voltage lockout, over-voltage protection, short-  
circuit protection, current limit, and output voltage pre-  
bias startup allow for a reliable and robust solution.  
The LM3150 SIMPLE SWITCHER® concept provides  
for an easy to use complete design using a minimum  
number of external components and TI’s WEBENCH®  
online design tool. WEBENCH® provides design  
support for every step of the design process and  
includes features such as external component  
calculation with a new MOSFET selector, electrical  
simulation, thermal simulation, and Build-It boards for  
prototyping.  
TYPICAL APPLICATIONS  
•
•
•
•
•
Telecom  
Networking Equipment  
Routers  
Security Surveillance  
Power Modules  
Typical Application  
V
IN  
VCC  
EN  
C
VCC  
VIN  
V
IN  
M1  
HG  
R
ON  
C
IN  
BST  
RON  
SS  
C
LM3150  
BST  
L
SW  
V
OUT  
C
SS  
C
OUT  
ILIM  
R
R
FB2  
FB  
R
LIM  
SGND  
M2  
LG  
FB1  
PGND  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2011, Texas Instruments Incorporated  
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