{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2941CT/LF03","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2941CT-LF03","canonicalUrl":"https://icboms.com/texas-instruments/LM2941CT-LF03","factsUrl":"https://icboms.com/api/mcp/products/LM2941CT%2FLF03","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2941CT/LF03, positive adjustable LDO voltage regulator, 1A output, 5V to 20V output range, 1V dropout at 1A, TO-220-5 formed leads, through-hole, 0°C to 125°C.","salesMarkdown":"## Positive adjustable LDO for 1A rails The Texas Instruments LM2941CT/LF03 is a positive adjustable low-dropout voltage regulator delivering up to 1A. Output is set with two external resistors from 5V up to 20V, making it a single-part solution for multiple post-regulation rails in a design. Maximum input voltage is 26V, and the maximum dropout voltage is 1V at full load — so a 5V output needs at least 6V on the input to stay in regulation. The TO-220-5 formed-leads package mounts through-hole and accepts a heatsink tab for thermal management. An Enable pin lets the system shut down the regulator for sequencing or power saving. Protection includes over-temperature, reverse polarity, and short-circuit — no external clamp diode needed for a reverse-battery condition on the input. Operating temperature is 0°C to 125°C — commercial grade. That covers most indoor equipment and appliances but not under-hood automotive or outdoor telecom enclosures without active cooling. Quiescent current runs 10 mA typical; supply current max is 15 mA. For battery-powered designs the 10 mA Iq is high compared to modern micropower LDOs — this part fits better on a line-powered board where quiescent draw is not the dominant constraint. ## Dropout and output range — what they mean for the rail budget The 1V dropout at 1A is the worst-case figure across temperature and load. The adjustable range from 5V to 20V covers common logic and analog rails.","metaTitle":"LM2941CT/LF03 LDO Regulator, Adjustable 1A, TO-220-5","metaDescription":"LM2941CT/LF03 positive adjustable LDO regulator, 1A output, 1V dropout at 1A, 5V to 20V out, TO-220-5. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-220-5 Formed Leads","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1A","Protection Features":"Over Temperature, Reverse Polarity, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C ~ 125°C","Voltage - Input (Max)":"26V","Voltage Dropout (Max)":"1V @ 1A","Current - Supply (Max)":"15 mA","Voltage - Output (Max)":"20V","Supplier Device Package":"TO-220-5","Current - Quiescent (Iq)":"10 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.85","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.85000","currency":"USD"},{"qty":10,"price":"$1.66000","currency":"USD"},{"qty":25,"price":"$1.56600","currency":"USD"},{"qty":100,"price":"$1.33440","currency":"USD"},{"qty":250,"price":"$1.25292","currency":"USD"},{"qty":500,"price":"$1.09630","currency":"USD"},{"qty":1000,"price":"$0.90837","currency":"USD"},{"qty":2500,"price":"$0.88650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/534e87283fea21734c60af8043c17df9.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM2941CT/LF03 equivalent to LM2941T?","answer":"Both are 1A adjustable positive LDOs in a TO-220-5 package. The LM2941CT/LF03 carries the ROHS3 compliance suffix. Pinout and function are the same; the LF03 suffix indicates lead-free and fully ROHS3 compliant. For a drop-in replacement in a leaded-solder process, verify the original part's ROHS status."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2941CT-LF03","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2941CT-LF03 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}