Power Integrations to Announce First-Quarter Results On April 23

• Press Release
• Source: Power Integrations, Inc.
• On 4:15 pm EDT, Monday April 6, 2009

SAN JOSE, Calif., April 6, 2009 (GLOBE NEWSWIRE) -- Power Integrations (NasdaqGS:POWI - News), the leader in high-voltage integrated circuits for energy-efficient power conversion, will announce its first-quarter financial results after market hours on April 23, 2009. The company will conduct a conference call beginning at 1:30 pm Pacific time. Members of the investment community can join the call by dialing 1-877-719-9789 from within the United States or 1-719-325-4807 from outside the U.S. Live and archived audio webcasts of the conference call will be available on the investor-relations page of the company's website, http://investors.powerint.com.

About Power Integrations

Power Integrations is the leading supplier of high-voltage analog integrated circuits used in energy-efficient power conversion. The company's innovative technology enables compact, energy-efficient power supplies in a wide range of electronic products, in AC-DC, DC-DC and LED lighting applications. Since its introduction in 1998, Power Integrations' EcoSmart(r) energy-efficiency technology has saved an estimated $3.3 billion of standby energy waste and prevented millions of tons of CO2 emissions. The company's Green Room web site (http://www.powerint.com/greenroom) provides a wealth of information about ``energy vampires'' and the issue of standby energy waste, along with a comprehensive guide to energy-efficiency standards around the world. Reflecting the environmental benefits of EcoSmart technology, Power Integrations is included in clean-technology stock indices sponsored by the Cleantech Group (Amex:CTIUS) and Clean Edge (Nasdaq:CELS). For more information, please visit http://www.powerint.com.

          Power Integrations, Inc.
          Joe Shiffler
          (408) 414-8528
          jshiffler@powerint.com