LM634x0-Q1 Synchronous Buck DC-DC Converters

Texas Instruments LM634x0-Q1 Synchronous Buck DC-DC Converters have excellent efficiency and ultra-low I_Q. With integrated high-side and low-side MOSFETs, up to 6A of output current is delivered over a wide input voltage range from 3V to 36V, with support for load-dump transients up to 42V. The converter implements soft recovery from dropout to eliminate overshooting of the output. The Texas Instruments LM634x0-Q1 incorporates numerous features for excellent EMI performance, including spread-spectrum frequency modulation, a low-EMI Enhanced HotRod QFN package that mitigates switch-node ringing, and a symmetrical pinout for excellent input capacitor placement. The switching frequency can be set between 200kHz and 2.2MHz to avoid sensitive frequency bands while optimizing efficiency or design size based on the application requirements.