Power Integrations (NASDAQ: POWI) will announce its first-quarter financial results after market hours on Thursday, May 3, 2012. The company will conduct a conference call beginning at 1:45 p.m. Pacific time. Members of the investment community can join the call by dialing 1-877-303-9795 from within the United States or 1-631-291-4581 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, Inc., is a Silicon Valley-based supplier of high-voltage integrated circuits and other high-voltage components used in energy-efficient power conversion. The company’s innovative technologies enable compact, reliable AC-DC power supplies for a vast range of electronic products including mobile devices, TVs, PCs, appliances, smart utility meters and LED lights. 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 the company’s products, Power Integrations’ stock is included in the NASDAQ ® Clean Edge ® Green Energy Index, The Cleantech Index ®, and the Ardour Global Index SM. For more information, including design-support tools and resources, please visit www.powerint.com; visit Power Integrations’ Green Room for a comprehensive guide to energy-efficiency standards around the world. Power Integrations, EcoSmart and the Power Integrations logo are trademarks or registered trademarks of Power Integrations, Inc. All other trademarks are property of their respective owners.