XML 16 R1.htm IDEA: XBRL DOCUMENT v3.24.1
Cover Page - USD ($)
$ in Billions
 12 Months Ended
Jan. 28, 2024
Mar. 22, 2024
Jul. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Current Fiscal Year End Date --01-28    
Document Transition Report false    
Entity File Number 001-06395    
Entity Registrant Name SEMTECH CORP    
Entity Central Index Key 0000088941    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 95-2119684    
Entity Address, Address Line One 200 Flynn Road    
Entity Address, City or Town Camarillo    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 93012-8790    
City Area Code 805    
Local Phone Number 498-2111    
Title of 12(b) Security Common Stock par value $0.01 per share    
Trading Symbol SMTC    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 1.3
Entity Common Stock, Shares Outstanding   64,563,181  
Documents Incorporated by Reference
Portions of the registrant’s Proxy Statement in connection with registrant’s 2024 annual meeting of stockholders to be filed with the Securities and Exchange Commission no later than 120 days after the end of the registrant’s fiscal year ended January 28, 2024 are incorporated by reference into Part III hereof.
    
Document Period End Date Jan. 28, 2024