Texas Instruments LM3150

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 synchronousarchitecture 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.Fault protection features such as thermal shutdown, under-voltage lockout, over-voltage protection, short- circuit protection, current limit, and output voltage prebias 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.

Features

• PowerWise® Step-down Controller
• 6V to 42V Wide Input Voltage Range
• Adjustable Output Voltage Down to 0.6V
• Programmable Switching Frequency up to 1MHz
• 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

REMARK:-For more detailREFERTABLE 2inductor selection tablehttp://www.ti.com/lit/ds/symlink/lm3150.pdfpage no 20

Typical applications

• Power Modules
• Networking Equipment
• Telecom
• Routers
• Security Surveillance

More information

• Datasheet
• IC product information