RichTek Technology Corporation Voltage Regulators - DC DC Switching Regulators RT6251BHGQW

The RT6251BHGQW is a synchronous step-down DC/DC converter capable of delivering up to 3A output current with an input voltage range of 4.5V to 18V. It features a current-mode architecture with external compensation, allowing for optimized transient response across various load conditions. The device includes multiple protection features such as cycle-by-cycle current limit, output under-voltage protection, output over-voltage protection, and over-temperature protection. It also supports a low current shutdown mode for efficient power management in battery-operated applications. The switching frequency is adjustable from 200kHz to 1.2MHz, and the device provides an accurate voltage reference of 0.8V ±1%. The RT6251BHGQW is packaged in a compact WQFN-14AL 3.5x3.5mm format, making it suitable for high-performance point-of-load regulation in applications such as notebook computers and high-density power systems.