{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61090RSAR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61090RSAR","canonicalUrl":"https://icboms.com/texas-instruments/TPS61090RSAR","factsUrl":"https://icboms.com/api/mcp/products/TPS61090RSAR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61090RSAR, Step-Up Boost Converter, 1.8V to 5.5V input, 2A switch, 600kHz, Synchronous Rectifier, Adjustable Output, -40°C to 85°C, 16-VQFN Exposed Pad.","salesMarkdown":"## Boost converter with a 2 A switch — what it delivers on the rail The synchronous rectifier replaces the usual Schottky catch diode with a low-side FET, which cuts the forward-drop losses and pushes efficiency higher — especially relevant when the load is light and every milliwatt matters for battery run time. ## Input range and output headroom for portable power The 1.8 V minimum input means this part keeps running when a single-cell Li-Ion has dropped to its discharge floor, or from two alkaline cells near end-of-life. The 5.5 V maximum input covers USB bus power and regulated 5 V rails without an external pre-regulator. ## 600 kHz switching and the 16-QFN package The 600 kHz switching frequency is a middle-ground choice — high enough to keep the inductor and output capacitor physically small for a portable PCB, but not so high that switching losses dominate the efficiency curve. It belongs in outdoor instrumentation, automotive cabin electronics, portable medical devices, and industrial sensor nodes that see a cold start or a hot enclosure. The 85°C ceiling is the ambient limit, not the junction — the 2 A switch generates its own heat, so the actual output current at 85°C ambient will be lower than at 25°C unless the board copper pulls enough heat away.","metaTitle":"TPS61090RSAR Step-Up Boost Converter, 2A Switch, 600kHz","metaDescription":"Texas Instruments TPS61090RSAR step-up boost converter. 2A switch, 600kHz, synchronous rectification, adjustable output. -40°C to 85°C, 16-QFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up","Topology":"Boost","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"16-VQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"2A (Switch)","Number of Outputs":"1","Base Product Number":"TPS61090","Output Configuration":"Positive","Frequency - Switching":"600kHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"1.8V","Voltage - Output (Max)":"5.5V","Supplier Device Package":"16-QFN (4x4)","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/9ae6e24c35332339c3f15d0d3223cdfb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61090RSAR/alternatives.json"},"ai":{"faq":[{"question":"Is TPS61090RSAR suitable for battery-powered applications?","answer":"Yes. The 1.8 V minimum input lets it run from a single-cell Li-Ion battery down to its discharge cutoff, and the synchronous rectifier improves light-load efficiency compared to a diode-based boost. The 2 A switch supports loads like a Wi-Fi module or a small motor that needs a brief current burst from a lower battery voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61090RSAR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61090RSAR 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}}