{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2576HVT-15","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2576HVT-15","canonicalUrl":"https://icboms.com/texas-instruments/LM2576HVT-15","factsUrl":"https://icboms.com/api/mcp/products/LM2576HVT-15","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SIMPLE SWITCHER® LM2576HVT-15, Step-Down Buck Regulator, Fixed 15V Output, 3A, 52 kHz, TO-220-5, -40°C to 125°C, Through Hole.","salesMarkdown":"## Obsolete — sourcing the LM2576HVT-15 for production The LM2576HVT-15 is officially obsolete per the manufacturer's lifecycle record. Read the PCN before you buy — date-code provenance matters here; mystery stock surfacing years after the official end-of-life needs careful validation. ## 3 A, 60 V input, fixed 15 V output — what the ratings mean The LM2576HVT-15 is a fixed 15 V output version of the SIMPLE SWITCHER buck regulator family. It delivers 3 A continuous output from a 4 V to 60 V input rail, making it a fit for 24 V and 48 V industrial bus voltages, as well as unregulated supplies that can swing above 48 V. The 52 kHz switching frequency is low by modern standards, which means the external inductor will be physically larger than what a higher-frequency switcher needs — but the trade-off is simpler layout and generally lower EMI. ## TO-220-5 through-hole package It requires a board-level heatsink or a thermal pad to the chassis for dissipating the heat from the 3 A output at higher input-output differentials. The five-pin layout — input, output, ground, feedback, and on/off — is standard for the SIMPLE SWITCHER family, but the fixed-output version ties the feedback pin internally, so no external resistor divider is needed. The tab is typically connected to ground or left floating; confirm the tab potential against your system's grounding scheme before committing the PCB. ## No synchronous rectifier — external Schottky required The LM2576HVT-15 does not integrate a synchronous rectifier, so an external Schottky diode is mandatory for the buck topology. The diode must be rated for the peak inductor current and the input voltage. A 3 A, 60 V Schottky in a DO-201AD or similar axial package is the typical companion part. The 52 kHz switching frequency gives the diode a relatively long conduction interval, so the diode's forward voltage drop directly affects efficiency — a low-Vf Schottky pays off here.","metaTitle":"LM2576HVT-15 SIMPLE SWITCHER, 3A Step-Down Regulator","metaDescription":"LM2576HVT-15 SIMPLE SWITCHER buck regulator, 3A output, 15V fixed, 60V input max. TO-220-5, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Obsolete","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)":"60V","Voltage - Input (Min)":"4V","Voltage - Output (Max)":"-","Supplier Device Package":"TO-220-5","Voltage - Output (Min/Fixed)":"15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/74e216c81e85fc39d2b33ae4761c412c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2576HVT-15/alternatives.json"},"ai":{"faq":[{"question":"What is a replacement for the LM2576HVT-15?","answer":"A functional replacement would need to match the 15 V fixed output, 3 A capability, 60 V input rating, and the SIMPLE SWITCHER pinout, but no single drop-in substitute is documented. Sourcing the original LM2576HVT-15 through independent channels remains the direct path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2576HVT-15","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2576HVT-15 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}}