{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS55289RYQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS55289RYQR","canonicalUrl":"https://icboms.com/texas-instruments/TPS55289RYQR","factsUrl":"https://icboms.com/api/mcp/products/TPS55289RYQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS55289RYQR, adjustable buck-boost switching regulator, 6.35 A switch, 3 V to 30 V input, 200 kHz to 2.2 MHz, synchronous rectification, -40°C to 125°C, 21-PowerVFQFN.","salesMarkdown":"The TPS55289RYQR: Input voltage range is 3 V to 30 V. Output adjustable down to 0.8 V with synchronous rectification. Switching frequency programmable from 200 kHz to 2.2 MHz. ## 21-VQFN-HR (3x5) — footprint and thermal reality The TPS55289RYQR is supplied in a 21-PowerVFQFN package, supplier device package 21-VQFN-HR measuring 3 mm x 5 mm. That is a compact land pattern for a 6.35 A switch, so the thermal pad and the via stitch under the package are not optional — they are part of the rated dissipation path. If you are hand-prototyping, the Cut Tape variant is the one to order.","metaTitle":"TPS55289RYQR Buck-Boost Regulator, 6.35 A, 21-VQFN","metaDescription":"Texas Instruments TPS55289RYQR adjustable buck-boost regulator, 6.35 A switch, 3 V to 30 V input, 200 kHz to 2.2 MHz, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up/Step-Down","Topology":"Buck-Boost","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"21-PowerVFQFN","lifecycle_stage":"eol_hot","Current - Output":"6.35A (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"200kHz ~ 2.2MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"30V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"0.8V","Supplier Device Package":"21-VQFN-HR (3x5)","Voltage - Output (Min/Fixed)":"0.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.05","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.05000","currency":"USD"},{"qty":10,"price":"$7.27500","currency":"USD"},{"qty":25,"price":"$6.93600","currency":"USD"},{"qty":100,"price":"$6.02260","currency":"USD"},{"qty":250,"price":"$5.75196","currency":"USD"},{"qty":500,"price":"$5.24442","currency":"USD"},{"qty":1000,"price":"$4.56772","currency":"USD"},{"qty":3000,"price":"$4.39855","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ed574d571222a349a64fda240fcc494.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current of TPS55289RYQR?","answer":"The TPS55289RYQR is rated for 6.35 A on the internal switch. That is the switch current limit, not the continuous output current — the actual output current depends on the input-to-output voltage ratio, the inductor value, and the thermal design. For a typical 12 V input to 5 V output conversion, expect several amps continuous with adequate PCB copper."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS55289RYQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS55289RYQR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}