uPI Semiconductor Corp., together with its subsidiaries, primarily engages in design, research, development, and sales of integrated circuits in Taiwan, the United States, and Asia. The company offers car charger; MOSFET driver; single output LDO; OP-amplifier and console; DC-DC controller, including single and multi phase buck controller; GaN FET driver; power monitor; PTIC; single output buck controller; integrated power stage, such as smart and lite power stage; and power distribution and switch. It also provides low and middle voltage power MOSFET. Its products are used for computing, industrial solution, and battery solution applications. The company was founded in 2005 and is headquartered in Zhubei, Taiwan.