    <SEC-DOCUMENT>0000833640-19-000082-index.html : 20190328
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    <ACCEPTANCE-DATETIME>20190328143727
    ACCESSION NUMBER:		0000833640-19-000082
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		3
    CONFORMED PERIOD OF REPORT:	20190522
    FILED AS OF DATE:		20190328
    DATE AS OF CHANGE:		20190328
    EFFECTIVENESS DATE:		20190328

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			POWER INTEGRATIONS INC
    		CENTRAL INDEX KEY:			0000833640
    		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
    		IRS NUMBER:				943065014
    		STATE OF INCORPORATION:			CA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-23441
    		FILM NUMBER:		19711414

    	BUSINESS ADDRESS:
    		STREET 1:		5245 HELLYER AVE
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95138
    		BUSINESS PHONE:		4084149200

    	MAIL ADDRESS:
    		STREET 1:		5245 HELLYER AVE
    		CITY:			SAN JOSE
    		STATE:			CA
    		ZIP:			95138
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>def14aproxy2019.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: def14aproxy2019.htm

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>a2019proxycardpage001.jpg
    <TEXT>
    Document 2 - file: a2019proxycardpage001.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>a2019proxycardpage002.jpg
    <TEXT>
    Document 3 - file: a2019proxycardpage002.jpg

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    </SEC-DOCUMENT>