Exhibit 99.1

             Semtech Announces Additional $50 Million Stock Buyback

     CAMARILLO, Calif.--(BUSINESS WIRE)--May 30, 2006--Semtech Corporation
(NASDAQ:SMTC) today announced that its Board of Directors has authorized an
additional $50 million for the Company's current stock buyback program. The
program authorizes the repurchase of common stock from time to time through
negotiated or open market transactions.
     To date, the Company has purchased almost $100 million worth of common
stock under this program that was established in February 2004.

     About Semtech

     Semtech Corporation is a leading supplier of high-performance analog and
mixed-signal semiconductors used in a wide range of computer, industrial and
communication applications. Publicly traded since 1967, Semtech is listed on the
Nasdaq National Market under the symbol SMTC.


     CONTACT: Semtech Corporation
              John Baumann, 805-480-2010