RichTek Technology Corporation Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators RT6259AHGQW

The RT6259AHGQW is a high-performance 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 an adjustable output voltage from 0.765V to 7V and operates at a steady switching frequency of 650kHz, ensuring quick transient response due to its Advanced Constant On-Time (ACOT,Ñ¢) control architecture. This design allows for stable operation with small ceramic output capacitors, eliminating the need for complex external compensation. The device includes internal power switches with a low on-resistance of 70mOc, contributing to high efficiency across various applications, particularly at low output voltages and duty cycles. Safety features include cycle-by-cycle current limit, input under-voltage lockout, and thermal shutdown, ensuring reliable operation under different conditions. The RT6259AHGQW is housed in a compact WQFN-16L 3x3 package with exposed thermal pads for improved heat dissipation. This product is suitable for applications in industrial and commercial low power systems, computer peripherals, and point of load regulation for high-performance DSPs, FPGAs, and ASICs.