LM5140RWGEVM Part Information

Details for LM5140RWGEVM by Texas Instruments

Education Maker & Hobbyist Electronics > Development Boards & Evaluation Kits > Power Management Development Kits

Part Description

The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN stepdown converter applications. The control method is based on current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and easier loop compensation. The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180ยบ out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switch-over to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.

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Part Specifications

Silicon Manufacturer Texas Instruments
Silicon Core Number LM5140-Q1
Kit Application Type Power Management
Application Sub Type Synchronous Buck Controller
Kit Contents Eval Board LM5140-Q1
Product Range -
Automotive Qualification Standard -
SVHC No SVHC (27-Jun-2018)
Features 2.2MHz Dual Output Synchronous Buck Controller Shutdown Current 9UA Supply Voltage 3.8V to 42V

Alternative Part Descriptions

  • EVAL BOARD, SYNC BUCK CONTROLLER; Silicon Manufacturer:Texas Instruments; Silicon Core Number:LM5140-Q1; Kit Application Type:Power Management; Application Sub Type:Synchronous Buck Controller; Kit Contents:Eval Board LM5140-Q1 RoHS Compliant: NA | Newark Electronics
  • LM5140RWGEVM Dual Synchronous Buck Converter EVM | Texas Instruments

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