Item 2.02. Results of Operations and Financial Condition.

On October 23, 2009 the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

    Exhibit 99.1.       Press release dated October 23, 2009

SIGNATURE

    Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

    Power Integrations (Registrant)

October 23, 2009 (Date)   /s/   BILL ROESCHLEIN Bill Roeschlein
Chief Financial Officer

  Exhibit Index
  99.1 Press release dated October 23, 2009