LM61440AANRJRR

LM61440/LM61440-Q1 Synchronous Step-Down Converter

Texas Instruments LM61440/LM61440-Q1 Low-Noise Synchronous Step-Down Converter is a high-performance, DC-DC synchronous step-down converter. 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, tolerant of 42V, easing input surge protection design. The LM61440/LM61440-Q1 implements soft recovery from dropout eliminating overshoot on the output. The LM61440/LM61440-Q1 is specifically designed for minimal EMI. The device incorporates an 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 set or 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 a smaller solution size at a high operating frequency.