{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS259541DSGR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS259541DSGR","canonicalUrl":"https://icboms.com/texas-instruments/TPS259541DSGR","factsUrl":"https://icboms.com/api/mcp/products/TPS259541DSGR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS259541DSGR electronic fuse, 2.7V~18V input, 4A output, ±7.5% accuracy, -40°C~125°C, 8-WSON (2x2) surface mount.","salesMarkdown":"## 4A eFuse for 2.7V to 18V rails The Texas Instruments TPS259541DSGR is an electronic fuse (eFuse) in an 8-WSON package, designed to protect downstream circuitry from overcurrent, overvoltage, and inrush events on supply rails from 2.7V up to 18V. It delivers a continuous 4A output with a current-limit accuracy of ±7.5%, making it a fit for 3.3V, 5V, and 12V bus protection in industrial, telecom, and automotive-adjacent designs. ## Input range and load budget The 2.7V to 18V input span covers common intermediate bus voltages without needing a separate pre-regulator. The 4A continuous rating sets the ceiling for the protected load — derate for ambient temperature above 85°C per the datasheet's SOA curves, since the 8-WSON exposed pad relies on PCB copper area for heat sinking. The ±7.5% current-limit accuracy means a 4A limit can trip as low as 3.7A or as high as 4.3A. Budget the low end when sizing the load: if the load draws 3.5A steady-state, the 3.7A minimum trip point leaves only 200 mA of headroom — marginal under transient conditions.","metaTitle":"TPS259541DSGR eFuse, 2.7V-18V input, 4A, active","metaDescription":"TI TPS259541DSGR electronic fuse, 2.7V to 18V input range, 4A continuous output, ±7.5% accuracy, -40°C to 125°C, 8-WSON.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Accuracy":"±7.5%","Function":"Electronic Fuse","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","Product Status":"Active","Sensing Method":"-","Voltage - Input":"2.7V ~ 18V","lifecycle_stage":"eol_hot","Current - Output":"4A","Base Product Number":"TPS259541","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"8-WSON (2x2)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/617f724dd3d0dc449a8923d1f4b9eccc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS259541DSGR/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy TPS259541DSGR?","answer":"The TPS259541DSGR is available through independent distribution."},{"question":"Is TPS259541DSGR a hot-swap or eFuse controller?","answer":"It is an electronic fuse (eFuse) — a single-chip solution that integrates the pass FET, current sensing, and control logic. It provides overcurrent, overvoltage, and inrush limiting without an external sense resistor or MOSFET."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS259541DSGR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS259541DSGR 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}}