LMQ62440CPPQRJRRQ1, Switching Voltage Regulators Automotive 3-V to 36-V, 4-A, low-noise fixed frequency synchronous step-down converter 14-V

LMQ62440-Q1 Synchronous Step-Down Converter

Texas Instruments LMQ62440-Q1 Low EMI Synchronous Step-Down Converter is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 4A of output current is delivered over a wide input range of 3.0V to 36V; 42V tolerance supports load dump for durations of 400ms. The device implements soft recovery from dropout, eliminating overshoot on the output. The device is specifically designed for minimal EMI. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200kHz and 2.2MHz to avoid noise-sensitive frequency bands. Also, the frequency can be selected for improved efficiency at a low operating frequency or smaller solution size at a high operating frequency.