{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61281AYFFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61281AYFFT","canonicalUrl":"https://icboms.com/texas-instruments/TPS61281AYFFT","factsUrl":"https://icboms.com/api/mcp/products/TPS61281AYFFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61281AYFFT, Step-Up Boost Converter, 5A Switch, 2.3MHz, Programmable Output 2.85V to 4.4V, 16-DSBGA (1.67x1.67), -40°C to 85°C, Obsolete.","salesMarkdown":"## 5 A switch boost in a 1.67 mm BGA The TPS61281AYFFT from Texas Instruments is a synchronous step-up (boost) converter that integrates a 5 A switch, letting it deliver useful output current from a single Li-ion cell or a 2.3 V to 4.85 V input rail. ## Switching at 2.3 MHz shrinks the passives The 2.3 MHz switching frequency lets the designer use a small inductor (typically 1 µH to 2.2 µH) and low-value ceramic output capacitors, keeping the total solution footprint tight around the 16-DSBGA package that measures just 1.67 x 1.67 mm. Synchronous rectification cuts the forward-drop loss of a Schottky diode, improving efficiency especially at moderate loads where the boost spends most of its operating time. ## Obsolete — sourcing from surplus and broker channels No official successor part is listed on the lifecycle record, so any replacement will require a pin-compatible or function-compatible cross-reference from the current TI boost converter portfolio. Expect to work with surplus stock or last-time-buy inventory held by brokers.","metaTitle":"TPS61281AYFFT Step-Up Boost Converter, 5A Switch, Obsolete","metaDescription":"Texas Instruments TPS61281AYFFT step-up boost converter with 5A switch, 2.3 MHz switching, programmable output 2.85-4.4V, -40 to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up","Topology":"Boost","Output Type":"Programmable","Mounting Type":"Surface Mount","Package / Case":"16-UFBGA, DSBGA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Current - Output":"5A (Switch)","Number of Outputs":"1","Base Product Number":"TPS61281","Output Configuration":"Positive","Frequency - Switching":"2.3MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"4.85V","Voltage - Input (Min)":"2.3V","Voltage - Output (Max)":"4.4V","Supplier Device Package":"16-DSBGA (1.67x1.67)","Voltage - Output (Min/Fixed)":"2.85V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9900","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61281AYFFT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS61281AYFFT obsolete and what are its replacements?","answer":"Yes, the TPS61281AYFFT is obsolete per Texas Instruments' lifecycle status. No direct pin-compatible replacement is listed on the official record. For a new design, consider current TI boost converters such as the TPS6128x family or TPS613xx series — verify the pinout, switching frequency, and output voltage range against your BOM requirements before substituting."},{"question":"What is the TPS61281AYFFT's listed function and package?","answer":"It is a step-up (boost) DC-DC converter with a 5 A integrated switch, programmable output from 2.85 V to 4.4 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61281AYFFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61281AYFFT 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}}