{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65266-1RHBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65266-1RHBR","canonicalUrl":"https://icboms.com/texas-instruments/TPS65266-1RHBR","factsUrl":"https://icboms.com/api/mcp/products/TPS65266-1RHBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65266-1RHBR, triple synchronous step-down buck regulator, adjustable output, 3A/2A/2A, 2.7V–6.5V input, 250kHz–2.4MHz switching, 32-VQFN (5x5 mm), -40°C to 125°C junction temperature.","salesMarkdown":"## Triple-output buck: 3 A + 2 A + 2 A for multi-rail systems The adjustable output voltage range spans from 2.7 V up to 6 V, and the switching frequency is programmable between 250 kHz and 2.4 MHz. ## Current budget per rail — sizing the output stage The 3 A channel on output 1 and the 2 A channels on outputs 2 and 3 set the per-rail load budget. Each channel uses its own inductor and output capacitor pair; the total combined output current is 7 A, but thermal derating in the 32-VQFN (5x5 mm) package at 125°C junction will reduce that ceiling. ## Switching frequency: trade-off between efficiency and inductor size The 250 kHz to 2.4 MHz programmable range lets the designer choose a lower frequency for higher efficiency (larger inductor) or a higher frequency for a smaller inductor footprint. At 2.4 MHz the switching losses dominate, so the 3 A channel will see a measurable efficiency drop versus running at 500 kHz.","metaTitle":"TPS65266-1RHBR Triple Buck Regulator, 3A/2A/2A, 32-VQFN","metaDescription":"Texas Instruments TPS65266-1RHBR triple step-down buck converter: 3A + 2A + 2A outputs, 2.7V–6.5V input, 250kHz–2.4MHz switching.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"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":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"32-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"3A, 2A, 2A","Number of Outputs":"3","Base Product Number":"TPS65266","Output Configuration":"Positive","Frequency - Switching":"250kHz ~ 2.4MHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"6.5V","Voltage - Input (Min)":"2.7V","Voltage - Output (Max)":"6V","Supplier Device Package":"32-VQFN (5x5)","Voltage - Output (Min/Fixed)":"2.7V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1060","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8f27dcbb1a0b79c1da03ea60a5e385a5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65266-1RHBR/alternatives.json"},"ai":{"faq":[{"question":"What is the switching frequency range of TPS65266-1RHBR?","answer":"The switching frequency is programmable from 250 kHz up to 2.4 MHz via an external resistor. The selected frequency sets the trade-off between efficiency and inductor size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65266-1RHBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65266-1RHBR 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}}