{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61081DRCT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61081DRCT","canonicalUrl":"https://icboms.com/texas-instruments/TPS61081DRCT","factsUrl":"https://icboms.com/api/mcp/products/TPS61081DRCT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61081DRCT step-up (boost) DC-DC converter, adjustable output to 27V, 1.3A switch, 600kHz/1.2MHz switching frequency, 10-VSON (3x3mm) package, -40 to 85°C.","salesMarkdown":"## 600 kHz or 1.2 MHz — the switching frequency is a design lever, not a fixed spec The TPS61081DRCT is a Texas Instruments boost converter that lets you choose between 600 kHz and 1.2 MHz switching frequency by tying the FREQ pin high or low. That choice directly sets the inductor size and the ripple trade-off: 600 kHz gives better efficiency at heavy loads and a wider input range before pulse-skipping; 1.2 MHz shrinks the inductor footprint and pushes the switching harmonics above the AM band, which matters if the supply shares a board with a radio front-end. ## 27 V output ceiling — what it buys you That voltage span covers OLED panel bias, CCD sensor bias in industrial cameras, and multi-LED strings where each string drops 3 V at 20 mA. The 1.3 A switch current limit means the practical output current at 27 V is about 240 mA, assuming 85 % efficiency and a 5 V input — enough for a 6.5 W load before the cycle-by-cycle current limit engages. ## Package and thermal: the exposed pad is non-negotiable The 10-VSON package (3 mm × 3 mm) has an exposed thermal pad. Without that copper area, the junction temperature rises above the 85 °C operating limit at moderate load. ## No synchronous rectifier — external Schottky required The TPS61081 does not integrate a synchronous rectifier. An external Schottky diode is required between the switch pin and the output. A 30 V, 2 A rated Schottky (e.g., a PMEG3020 or similar) is the typical choice — the forward drop directly affects efficiency, especially at the 1.2 MHz switching rate where reverse-recovery losses in a PN diode would be unacceptable.","metaTitle":"TPS61081DRCT Boost Converter, 600kHz/1.2MHz, 27V Output","metaDescription":"TI TPS61081DRCT step-up DC-DC converter, 2.5-6V input, adjustable output to 27V, 1.3A switch, 600kHz/1.2MHz switching, 10-VSON package.","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":"10-VFDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"1.3A (Switch)","Number of Outputs":"1","Base Product Number":"TPS61081","Output Configuration":"Positive","Frequency - Switching":"600kHz, 1.2MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"6V","Voltage - Input (Min)":"2.5V","Voltage - Output (Max)":"27V","Supplier Device Package":"10-VSON (3x3)","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.7500","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61081DRCT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS61081DRCT equivalent to TPS61080?","answer":"The TPS61080 and TPS61081 share the same pinout and package. The difference is the switching frequency: the TPS61080 is fixed at 1.2 MHz, while the TPS61081 lets you select 600 kHz or 1.2 MHz via the FREQ pin. Both are boost converters with a 27 V output ceiling and a 1.3 A switch. If your design needs the lower frequency option for efficiency at heavy load, the TPS61081 is the part; if you only need 1.2 MHz, the TPS61080 is a cost-optimised drop-in."},{"question":"Does TPS61081DRCT need an external diode?","answer":"Yes. The TPS61081 does not integrate a synchronous rectifier, so an external Schottky diode is required between the SW pin and VOUT. A 30 V, 2 A Schottky is the typical recommendation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61081DRCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61081DRCT 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}}