POWER INTEGRATIONS INC — Director's Dealing 2011

Feb 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: POWER INTEGRATIONS INC (POWI)
CIK: 0000833640
Period of Report: 2011-02-01

Reporting Person: TOMLIN JOHN (Vice President, Operations)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-02-01	Common Stock	M	750	$18.95	Acquired	19622	Direct
2011-02-01	Common Stock	S	750	$37.11	Disposed	18872	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-02-01	Non-Qualified Stock Option (right to buy)	$18.95	M	750	Disposed	2013-01-08	Common Stock (750)	Direct

Footnotes

F1: This sale is pursuant to a 10B5-1 Sales Plan.