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LM3150MHX/NOPB
SIMPLE SWITCHER庐 CONTROLLER, 42V Synchronous Step-Down
Sample & Support & Product Tools & Technical Community Buy Folder Documents Software LM3150 SNVS561G – SEPTEMBER 2008 – REVISED SEPTEMBER 2015 LM3150 Wide-VIN Synchronous Buck Controller 1 Features 3 Description ® The LM3150 SIMPLE SWITCHER controller is an 1• PowerWise™ Step-Down Controller easy-to-use and simplified step-down power • 6-V to 42-V Wide Input Voltage Range controller capable of providing up to 12 A of output • Adjustable Output Voltage Down to 0.6 V current in a typical application. Operating with an input voltage range of 6 V to 42 V, the LM3150 • Programmable Switching Frequency up to 1 MHz controller features an adjustable output voltage down • No Loop Compensation Required to 0.6 V. The switching frequency is adjustable up to ® • Fully WEBENCH Enabled 1 MHz and the synchronous architecture provides for • Low External Component Count highly efficient designs. The LM3150 controller employs a constant on-time (COT) architecture with a • Constant On-Time (COT) Control proprietary emulated ripple mode (ERM) control that • Ultra-Fast Transient Response allows for the use of low ESR output capacitors, • Stable With Low ESR Capacitors which reduces overall solution size and output voltage ripple. The COT regulation architecture allows • Output Voltage PreBias Startup for fast transient response and requires no loop • Valley Current Limit compensation, which reduces external component • Programmable Soft-Start count and reduces design complexity. • Create a Custom Design Using the LM3150 with Fault protection features such as thermal shutdown, the WEBENCH Power Designer undervoltage lockout, overvoltage protection, short- circuit protection, current limit, and output voltage 2 Applications prebias start-up allow for a reliable and robust solution. • Telecom • Networking Equipment The LM3150 concept provides for an easy-to-use complete design using a minimum number of external • Routers components and TI’s WEBENCH online design tool. • Security Surveillance WEBENCH provides design support for every step of • Power Modules 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. (1) Device Information PART NUMBER PACKAGE BODY SIZE (NOM) LM3150 HTSSOP (14) 5.00 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Typical Application Schematic VCC V EN IN CVCC VIN V IN HG M1 R ON C IN BST RON LM3150 CBST L SS SW V OUT C SS C ILIM R OUT FB2 FB RLIM SGND M2 LG R FB1 PGND 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
