{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS259571DSGR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS259571DSGR","canonicalUrl":"https://icboms.com/texas-instruments/TPS259571DSGR","factsUrl":"https://icboms.com/api/mcp/products/TPS259571DSGR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS259571DSGR electronic fuse, 2.7V to 18V input range, 4A continuous output, ±7.5% current-limit accuracy, -40°C to 125°C junction temperature, 8-WSON (2x2) surface-mount package.","salesMarkdown":"## 2.7V to 18V input, 4A output eFuse in a 2x2 mm WSON The Texas Instruments TPS259571DSGR is an electronic fuse (eFuse) that protects downstream circuitry from overcurrent, overvoltage, and inrush events. It operates from a 2.7V to 18V input rail and delivers up to 4A continuous output — covering common 3.3V, 5V, 12V, and 15V supply buses in industrial, automotive, and telecom equipment. ## Current-limit accuracy and protection margin The TPS259571DSGR specifies a current-limit accuracy of ±7.5%. This tolerance sets the headroom between the nominal load current and the programmed trip threshold — a ±7.5% band means the designer must budget for a minimum trip point 7.5% below the set value to avoid nuisance trips at full load. The 4A continuous output rating is the steady-state current the device can carry without exceeding the thermal limits of the 8-WSON package. Actual current capability depends on PCB copper area, airflow, and ambient temperature — the datasheet's thermal derating curves should be consulted for the specific layout. No end-of-life notification or last-time-buy window is on file.","metaTitle":"TI TPS259571DSGR Electronic Fuse, 2.7V–18V, 4A, 8-WSON","metaDescription":"Texas Instruments TPS259571DSGR electronic fuse, 2.7V to 18V input, 4A output, ±7.5% accuracy, -40°C to 125°C junction temp, 8-WSON (2x2) package.","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":"TPS259571","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/TPS259571DSGR/alternatives.json"},"ai":{"faq":[{"question":"Does TPS259571DSGR require external components?","answer":"Like most eFuses, the TPS259571DSGR requires external resistors to set the current-limit threshold and a capacitor for output slew-rate control. The datasheet provides the component selection guidelines."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS259571DSGR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS259571DSGR 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}}