X0306 4 2018-09-20 0000088941 SEMTECH CORP SMTC 0001753689 Cardenuto Rodolpho C 200 FLYNN RD. CAMARILLO CA 93012 true false false false Board of Directors Restricted Stock Unit 2018-09-20 4 A false 1056 0 A SMTC 1056 1056 D Restricted Stock Unit 2018-09-20 4 A false 924 0 A SMTC 924 924 D Each stock unit is the economic equivalent of one share of Semtech common stock. The stock units vest on the earlier of the one year anniversary of the award or the day immediately preceding the annual meeting of shareholders in the year following the grant and are payable in cash on the last date that the Director renders services to the Company. The stock units vest on the earlier of the one year anniversary of the award or the day immediately preceding the annual meeting of shareholders in the year following the grant and are payable in shares. /s/Rodolpho C Cardenuto by Charles B. Ammann under Power of Attorney dated September 18, 2018 (Copy On File) 2018-09-24