{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS55010RTET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS55010RTET","canonicalUrl":"https://icboms.com/texas-instruments/TPS55010RTET","factsUrl":"https://icboms.com/api/mcp/products/TPS55010RTET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS55010RTET flyback switching regulator, 1-output adjustable, 2.98-6V input to 20V max output, 100kHz-2MHz, 16-WQFN (3x3mm), Tape & Reel.","salesMarkdown":"## Flyback topology in a 3x3 mm QFN — what it means for the board The TPS55010RTET is a single-output flyback regulator from Texas Instruments that handles step-up/step-down conversion with isolation capability. It takes a 2.98 V to 6 V input rail and delivers an adjustable output up to 20 V — the flyback transformer turns ratio sets the actual output, not the IC alone. ## Switching frequency range and the inductor trade-off The oscillator runs from 100 kHz to 2 MHz, set by a single resistor. At 2 MHz the flyback transformer shrinks to a few microhenries — good for board space — but the AC losses in the core and the switching losses in the FET rise. At 100 kHz the magnetics are larger but the efficiency peaks, especially under heavy load. The RT pin resistor value selects the frequency; no external clock sync is available. Synchronous rectification is built in — the internal low-side FET replaces the usual output diode, recovering the diode forward drop. This matters most at low output voltages where the diode drop is a large fraction of the rail; at 3.3 V out the efficiency gain over a diode flyback is typically 5-8%. ## Output polarity and isolation — one IC, two configurations The output configuration is listed as positive or negative, isolation capable. In a non-isolated flyback the output shares the input ground and the IC regulates a positive or negative rail. With a coupled inductor or transformer that has primary-to-secondary isolation, the output floats relative to input ground — the feedback path then crosses the isolation barrier, typically through an optocoupler or a transformer winding. The adjustable output starts from a 3.3 V minimum fixed reference (the internal error amplifier compares FB to 3.3 V). Below that voltage the part cannot regulate — the output must be higher than the reference. For rails under 3.3 V, an external divider from the output to FB still works because the FB pin is the error amp input, but the minimum achievable output is set by the internal reference.","metaTitle":"TI TPS55010RTET Flyback Regulator, 2.98-6V In, 20V Out","metaDescription":"Texas Instruments TPS55010RTET flyback switching regulator. 2.98-6V input, adjustable output to 20V, 100kHz-2MHz, -40 to 150°C. Active, ROHS3. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up/Step-Down","Topology":"Flyback","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"16-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Number of Outputs":"1","Output Configuration":"Positive or Negative, Isolation Capable","Frequency - Switching":"100kHz ~ 2MHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"6V","Voltage - Input (Min)":"2.98V","Voltage - Output (Max)":"20V","Supplier Device Package":"16-WQFN (3x3)","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.93000","currency":"USD"},{"qty":10,"price":"$2.63200","currency":"USD"},{"qty":25,"price":"$2.48320","currency":"USD"},{"qty":100,"price":"$2.11560","currency":"USD"},{"qty":250,"price":"$1.98644","currency":"USD"},{"qty":500,"price":"$1.73814","currency":"USD"},{"qty":1250,"price":"$1.44017","currency":"USD"},{"qty":2500,"price":"$1.40550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8892b488ba32d1be754bfea51254ce1a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to TPS55010RTET — TPS65261RHBT?","answer":"TPS65261RHBT is a 3-output synchronous buck regulator, not a flyback. The topology is different — buck vs flyback — and the output count, polarity, and isolation capability do not match. It is not a functional second-source for the TPS55010RTET."},{"question":"What package does TPS55010RTET come in?","answer":"It is supplied in a 16-WFQFN exposed pad package (3x3 mm body, 16-WQFN supplier package)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS55010RTET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS55010RTET when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}