    <SEC-DOCUMENT>0001193125-19-136966-index.html : 20190503
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    <ACCEPTANCE-DATETIME>20190503161904
    ACCESSION NUMBER:		0001193125-19-136966
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20190503
    DATE AS OF CHANGE:		20190503
    EFFECTIVENESS DATE:		20190503

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SEMTECH CORP
    		CENTRAL INDEX KEY:			0000088941
    		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
    		IRS NUMBER:				952119684
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			0127

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-06395
    		FILM NUMBER:		19796430

    	BUSINESS ADDRESS:
    		STREET 1:		200 FLYNN ROAD
    		CITY:			CAMARILLO
    		STATE:			CA
    		ZIP:			93012-8790
    		BUSINESS PHONE:		8054982111

    	MAIL ADDRESS:
    		STREET 1:		200 FLYNN ROAD
    		CITY:			CAMARILLO
    		STATE:			CA
    		ZIP:			93012-8790
    </SEC-HEADER>
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    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>d723043ddefa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: d723043ddefa14a.htm

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    <SEQUENCE>2
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    <DESCRIPTION>GRAPHIC
    <TEXT>
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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g723043page004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g723043page004.jpg

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