{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65273VRHHT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65273VRHHT","canonicalUrl":"https://icboms.com/texas-instruments/TPS65273VRHHT","factsUrl":"https://icboms.com/api/mcp/products/TPS65273VRHHT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65273VRHHT, dual 3.5 A synchronous step-down (buck) regulator, 4.5 V to 18 V input, programmable output from 0.68 V to 1.95 V, 200 kHz to 1.6 MHz switching frequency, –40°C to 85°C, 36-VFQFN Exposed Pad package.","salesMarkdown":"## Dual 3.5 A synchronous buck in a 6x6 mm QFN The TPS65273VRHHT is a dual-output synchronous buck regulator from Texas Instruments, each output rated for 3.5 A continuous. The 36-VQFN (6x6) package with exposed pad packs two 3.5 A rails into a board footprint that fits alongside a 12 V or 15 V input bus. The input range spans 4.5 V to 18 V, so it works from a 5 V or 12 V pre-regulated rail but cannot start from a 3.3 V bus. ## Switching frequency and efficiency trade-offs The switching frequency is adjustable from 200 kHz to 1.6 MHz. Running at 1.6 MHz shrinks the inductor to a 0603 or 0805 footprint but increases switching losses; dropping to 200 kHz improves efficiency at the cost of a larger inductor. The synchronous rectifier helps maintain efficiency at the low end of the output range. ## Package and layout checklist The 36-VFQFN Exposed Pad (6x6 mm) requires a thermal land on the PCB — the datasheet recommends a 4.5 mm x 4.5 mm pad with at least nine thermal vias to the ground plane.","metaTitle":"TPS65273VRHHT Dual 3.5 A Step-Down Regulator – TI Active","metaDescription":"Texas Instruments TPS65273VRHHT dual 3.5 A synchronous buck regulator, 4.5–18 V input, programmable output, 200 kHz–1.6 MHz, –40 to 85°C, 36-VQFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Programmable","Mounting Type":"Surface Mount","Package / Case":"36-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"3.5A","Number of Outputs":"2","Base Product Number":"TPS65273","Output Configuration":"Positive","Frequency - Switching":"200kHz ~ 1.6MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"18V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"1.95V","Supplier Device Package":"36-VQFN (6x6)","Voltage - Output (Min/Fixed)":"0.68V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.8700","priceTiers":[{"qty":1,"price":"$5.87000","currency":"USD"},{"qty":10,"price":"$5.27300","currency":"USD"},{"qty":25,"price":"$4.98480","currency":"USD"},{"qty":100,"price":"$4.32000","currency":"USD"},{"qty":250,"price":"$4.09848","currency":"USD"},{"qty":500,"price":"$3.67756","currency":"USD"},{"qty":1250,"price":"$3.13500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/cb705198025a8b84e4f3a1dc53460318.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65273VRHHT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS65273VRHHT available from authorized distributors?","answer":"Yes — Texas Instruments is an authorized manufacturer, and we source through the authorized distribution channel. We confirm availability at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65273VRHHT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65273VRHHT 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}}