The LTC3805IMSE#TRPBF is a high efficiency, low noise, high voltage synchronous buck regulator designed by Analog Devices. It supports output currents of up to 8A, input voltages up to 40V, and has a wide range step-down voltage range. It features an ultrafast transient response, adjustable switching frequency, and adjustable soft-start. The output voltage is accurately programmed with a single external resistor, providing a low parts count solution. Its high switching speed and low RDS(ON) of 90mO (typical) enables high efficiency and small solution size. The device also features a synchronizable frequency for paralleling applications, as well as a selectable over-current protection. The device is housed in a 15-pin, 5mm x 5mm TSSOP surface-mount package.