pSemi (formerly Peregrine Semiconductor), is a San Diego–based manufacturer of high-performance RF (radio frequency) CMOS integrated circuits.

The company was founded in 1990 by former NOSC (Naval Ocean Systems Center) researchers Dr. Ron Reedy and Dr. Mark Burgener, along with partner Rory Moore.

[12] In March 2017 the company acquired Arctic Sand Technologies, a designer and manufacturer of power converters based in Burlington, Massachusetts.

[14][15] On July 1, 2019, Sumit Tomar took over the position of CEO,[16] and Go Maruyama was promoted to senior vice president of administrations.

[17][18] Former CEO of pSemi, Jim Cable, retired in January 2020 from his positions of chairman and chief technology officer after 20 years with the company.

[22][23] The company has about 150 products used in applications such as cellular base stations, medical devices, public safety radios, test and measurement equipment and mobile handsets.

[26][27] The company also claims that the power amplifier embedded on the Global 1 chip provides the same level of performance as the competing technology, gallium arsenide (GaAS).