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LM3150MH Arkusz danych(PDF) 1 Page - Texas Instruments |
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LM3150MH Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 26 page 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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