US3022 Datasheet PDF

UNISEM US3022

The US3022 is the first controller IC with five controller in one package specifically designed to meet Intel specification for next generation microprocessor applications requiring multiple on board regulators . The US3022 provides a single chip controller IC for the Vcore , 4 LDO controllers, one with the automatic select pin that connects to the TYPE DETECT pin of the AGP slot for the AGP Vddq supply, one for GTL+ , the other for the 1.8V chip set regulator as well as 2.5V for the clock as required for the next generation PC applications. The US3022 typically uses Bipolar transistors for Vout3(1.5V) and Vout4(1.8V) and Vout5 however if Vaux pin is connected to 12V, then MOSFETs can also be used as external pass elements.