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LM3150MH Arkusz danych(PDF) 1 Page - Texas Instruments

Numer części LM3150MH
Szczegółowy opis  LM3150 SIMPLE SWITCHER CONTROLLER, 42V Synchronous Step-Down
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Strona internetowa  http://www.ti.com
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LM3150MH Arkusz danych(HTML) 1 Page - Texas Instruments

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EN
SS
HG
SW
L
LM3150
FB
VCC
PGND
SGND
BST
ILIM
LG
CIN
CSS
VIN
VIN
RON
RON
COUT
VOUT
CBST
CVCC
VIN
RLIM
RFB2
RFB1
M2
M1
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
2
PowerWise® Step-down Controller
easy to use and simplified step down power controller
6V to 42V Wide Input Voltage Range
capable of providing up to 12A of output current in a
Adjustable Output Voltage Down to 0.6V
typical application. Operating with an input voltage
range of 6V-42V, the LM3150 features an adjustable
Programmable Switching Frequency up to 1
output voltage down to 0.6V. The switching frequency
MHz
is adjustable up to 1 MHz and the synchronous
No Loop Compensation Required
architecture provides for highly efficient designs. The
Fully WEBENCH® Enabled
LM3150 controller employs a Constant On-Time
(COT) architecture with a proprietary Emulated Ripple
Low External Component Count
Mode (ERM) control that allows for the use of low
Constant On-Time Control
ESR output capacitors, which reduces overall solution
Ultra-fast Transient Response
size and output voltage ripple. The Constant On-Time
(COT) regulation architecture allows for fast transient
Stable with Low ESR Capacitors
response and requires no loop compensation, which
Output Voltage Pre-bias Startup
reduces external component count and reduces
Valley Current Limit
design complexity.
Programmable Soft-start
Fault protection features such as thermal shutdown,
under-voltage lockout, over-voltage protection, short-
TYPICAL APPLICATIONS
circuit protection, current limit, and output voltage pre-
bias startup allow for a reliable and robust solution.
Telecom
Networking Equipment
The LM3150 SIMPLE SWITCHER® concept provides
for an easy to use complete design using a minimum
Routers
number of external components and TI’s WEBENCH®
Security Surveillance
online design tool. WEBENCH® provides design
Power Modules
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 Application
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.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008–2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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