{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS259571DSGT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS259571DSGT","canonicalUrl":"https://icboms.com/texas-instruments/TPS259571DSGT","factsUrl":"https://icboms.com/api/mcp/products/TPS259571DSGT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS259571DSGT electronic fuse, 2.7V~18V input, 4A output, ±7.5% accuracy, 8-WSON (2x2) package, -40°C~125°C, active.","salesMarkdown":"## 2.7V to 18V input, 4A eFuse in 2x2 mm WSON The Texas Instruments TPS259571DSGT is an integrated electronic fuse (eFuse) in an 8-WSON (2x2) 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 output current of 4A with a current-limit accuracy of ±7.5%, which determines the guard band needed between the trip threshold and the load's peak demand. ## Current-limit accuracy and thermal budget The ±7.5% accuracy on the current-limit threshold means a design targeting a 3.6A continuous load must set the limit no lower than 3.9A to avoid nuisance trips at the low end of the tolerance band, leaving 0.3A of headroom above the nominal load. The 8-WFDFN exposed pad (8-WSON 2x2) package relies on the PCB copper pour under the pad for thermal dissipation; the datasheet's RθJA figure assumes a specific land pattern, so the layout must match the recommended footprint to achieve the rated 4A without hitting the thermal shutdown threshold.","metaTitle":"TPS259571DSGT Electronic Fuse, 2.7V-18V Input, 4A Output","metaDescription":"Texas Instruments TPS259571DSGT electronic fuse in 8-WSON package. 2.7V to 18V input range, 4A continuous output, ±7.5% accuracy, -40°C to 125°C.","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":"$1.1700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/617f724dd3d0dc449a8923d1f4b9eccc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS259571DSGT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS259571DSGT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS259571DSGT 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}}