The AT75BL33SQ is a linear voltage regulator (LDO) manufactured by Agertech and is RoHS compliant. It has an SOT-89-3 form factor and is designed for general-purpose applications. The device provides a regulated output voltage of 3.3V while allowing an input voltage range of 2V to 5.5V. It offers low quiescent current (15uA typical) with a rated output current of up to 600mA. The device also features a fast transient response, inrush protection, and reverse-current protection. It is ideal for applications such as efficiency-sensitive embedded/industrial controllers, LCD panels, digital video recorders, and media players.