{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2576T-12","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2576T-12","canonicalUrl":"https://icboms.com/texas-instruments/LM2576T-12","factsUrl":"https://icboms.com/api/mcp/products/LM2576T-12","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SIMPLE SWITCHER® LM2576T-12, step-down (buck) regulator, fixed 12V output, 3A, 52 kHz switching, through-hole TO-220-5 package, -40°C to 125°C junction temperature.","salesMarkdown":"## 3A buck regulator in a through-hole TO-220-5 The Texas Instruments LM2576T-12 is a SIMPLE SWITCHER® step-down (buck) regulator delivering a fixed 12V output at up to 3A. It switches at 52 kHz, a low frequency that keeps switching losses down but calls for a larger inductor than a modern 500 kHz part would. The through-hole TO-220-5 package bolts to a heatsink or a copper island on the PCB — the tab is the output switch node, so the thermal pad area needs clearance from ground. ## NRND — plan a replacement now ## Input range and thermal envelope The input range spans 4V to 40V, covering unregulated DC rails from 5V to 24V supplies. The 52 kHz switching frequency is fixed; the regulator does not support synchronisation to an external clock, so it is not a fit for noise-sensitive mixed-signal boards where the fundamental and its harmonics must be shifted away from a sensitive band.","metaTitle":"LM2576T-12 SIMPLE SWITCHER Buck Regulator, 3A, 52 kHz, NRND","metaDescription":"Texas Instruments LM2576T-12 SIMPLE SWITCHER step-down regulator, 3A output, 52 kHz switching, TO-220-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"SIMPLE SWITCHER®","Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-5","Product Status":"Not For New Designs","lifecycle_stage":"eol_hot","Current - Output":"3A","Number of Outputs":"1","Base Product Number":"LM2576","Output Configuration":"Positive","Frequency - Switching":"52kHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"4V","Voltage - Output (Max)":"-","Supplier Device Package":"TO-220-5","Voltage - Output (Min/Fixed)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.7992","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/74e216c81e85fc39d2b33ae4761c412c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2576T-12/alternatives.json"},"ai":{"faq":[{"question":"Is LM2576T-12 obsolete?","answer":"Existing production and repair orders are still supportable through the independent channel."},{"question":"What is the replacement for LM2576T-12?","answer":"For a new design, consider a modern synchronous buck regulator with a similar 4V to 40V input range and 3A output capability, or another fixed-voltage variant in the SIMPLE SWITCHER family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2576T-12","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2576T-12 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}