Solution Finder Get Tech Support



About Power Integrations

Power Integrations, Inc., is a Silicon Valley-based supplier of high-performance components used in high-voltage power conversion. Our integrated circuits enable compact, energy-efficient AC-DC power supplies for a vast range of electronic products including smartphones, appliances, smart utility meters, LED lights and numerous industrial applications, while our SCALE gate drivers are critical components in high-power systems such as solar and wind energy, industrial motor drives, electric vehicles and high-voltage DC transmission lines.

Since its introduction in 1998, Power Integrations' EcoSmart energy-efficiency technology has prevented billions of dollars' worth of energy waste and millions of tons of carbon emissions. Reflecting the environmental benefits of our products, Power Integrations' stock is a component of clean-technology stock indices sponsored by Cleantech Group LLC and Clean Edge. Visit our Green Room for a comprehensive guide to energy-efficiency standards around the world.

PI Quick Facts
HeadquartersSan Jose, California
Chief ExecutiveBalu Balakrishnan
IndustryAnalog Semiconductors
Employees (as of Dec. 31, 2021)773
2021 Revenues$703 million
Date of Initial Public OfferingDecember 1997
Ticker Symbol (NASDAQ)POWI

Company Milestones

  • 1988 – Power Integrations founded by Klas Eklund, Art Fury and Steve Sharp
  • 1994 – TOPSwitch family debuted as company’s first commercial product
  • 1997 – Initial public offering on NASDAQ at $4/share (split-adjusted)
  • 1998 – Introduced TinySwitch family with EcoSmart energy-efficiency technology
  • 1999 – TinySwitch received Discover Magazine Award for Technological Innovation
  • 2002 – Introduced LinkSwitch family – industry’s first cost-effective replacement for linear transformers, or "energy vampires"
  • 2002 – Balu Balakrishnan succeeded Howard Earhart as CEO; annual revenues surpass $100 million
  • 2003 – Selected as one of the world’s top 20 “sustainable stocks” by
  • 2005 – Energy savings from EcoSmart technology surpassed $1 billion; company again selected as one of world’s top 20 sustainable stocks by
  • 2006 – Received ENERGY STAR® award
  • 2007 – Company’s stock added to NASDAQ Clean Edge stock indices
  • 2008 – Stock added to The Cleantech Index; company initiates quarterly dividend
  • 2010 – Unveiled one of Silicon Valley’s largest solar installations at our San José headquarters
  • 2012 – Acquired CT-Concept, Swiss provider of IGBT drivers, for $116 million
  • 2012 – Introduced LYTSwitch family for LED lighting applications
  • 2014 – Introduced revolutionary InnoSwitch product family
  • 2015 – Acquired Cambridge Semiconductor, UK-based supplier of controller chips for AC-DC power supplies, for $23 million
  • 2016 – Surpassed $100M in quarterly revenues for the first time (Q3)
  • 2017 – Expanded Asian presence with new R&D and production-support center in Penang, Malaysia
  • 2019 – Introduced InnoSwitch3 products utilizing gallium-nitride (GaN) transistors; shipped one-millionth GaN-based IC in September
  • 2020 – InnoSwitch IC sales surpass one billion units
  • 2021 - Surpassed $500M, $600M and $700M in revenue with growth of 44%