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        <filer>
          <filerCredentials>
            <cik>0001347095</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
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      <issuerInfo>
        <issuerCik>0000088941</issuerCik>
        <issuerName>SEMTECH CORP</issuerName>
        <secFileNumber>001-06395</secFileNumber>
        <issuerAddress>
          <com:street1>200 FLYNN ROAD</com:street1>
          <com:city>CAMARILLO</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>93012-8790</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>8054982111</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Summers Sylvia</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Piper Sandler &amp; Co.</name>
          <address>
            <com:street1>800 Nicollet Mall</com:street1>
            <com:city>Minneapolis</com:city>
            <com:stateOrCountry>MN</com:stateOrCountry>
            <com:zipCode>55414</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>16000</noOfUnitsSold>
        <aggregateMarketValue>366080.00</aggregateMarketValue>
        <noOfUnitsOutstanding>64280000</noOfUnitsOutstanding>
        <approxSaleDate>12/15/2023</approxSaleDate>
        <securitiesExchangeName>NASDAQ</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
        <acquiredDate>01/04/2019</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Units and Stock Options</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Semtech Corporation</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>16000</amountOfSecuritiesAcquired>
        <paymentDate>12/15/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>12/15/2023</noticeDate>
        <signature>Alex Johnson, a duly authorized representative of Piper Sandler &amp; Co Corporate &amp; Venture Services FA, as attorney-in-fact for Silvia Couder</signature>
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text: 144
  0001347095
  XXXXXXXX
  LIVE
  0000088941
  SEMTECH CORP
  001-06395
  200 FLYNN ROAD
  CAMARILLO
  CA
  93012-8790
  8054982111
  Summers Sylvia
  Director
  COMMON STOCK
  Piper Sandler & Co.
  800 Nicollet Mall
  Minneapolis
  MN
  55414
  16000
  366080.00
  64280000
  12/15/2023
  NASDAQ
  COMMON STOCK
  01/04/2019
  Restricted Stock Units and Stock Options
  Semtech Corporation
  N
  16000
  12/15/2023
  Cash
  Y
  12/15/2023
  Alex Johnson, a duly authorized representative of Piper Sandler & Co Corporate & Venture Services FA, as attorney-in-fact for Silvia Couder