{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65251-1RHAT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65251-1RHAT","canonicalUrl":"https://icboms.com/texas-instruments/TPS65251-1RHAT","factsUrl":"https://icboms.com/api/mcp/products/TPS65251-1RHAT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65251-1RHAT triple-output step-down buck regulator, 3A and 2A adjustable outputs, 4.5V to 18V input, 300kHz to 2.2MHz switching frequency, 40-VFQFN exposed pad package, -40°C to 125°C.","salesMarkdown":"## Triple-output buck for multi-rail designs The TPS65251-1RHAT is a triple-output step-down buck regulator from Texas Instruments, delivering 3A on one channel and 2A on the other two. The adjustable outputs can be set from 0.8V up to 17V, covering 1.2V core rails, 3.3V I/O, and 5V analog supplies from a single 4.5V to 18V input bus. ## Switching frequency and thermal layout A lower frequency improves efficiency by reducing switching losses; a higher frequency shrinks the inductor and output capacitor footprint at the cost of increased FET losses and tighter loop compensation. ## Synchronous rectification and output configuration All three channels use synchronous rectification, which eliminates the external Schottky catch diode and improves efficiency at higher output currents. The outputs are positive and adjustable, with a minimum reference of 0.8V. The 3A output is typically assigned to the highest-current rail (e.g., 5V or 3.3V), while the 2A channels handle lower-power loads.","metaTitle":"TI TPS65251-1RHAT Triple Buck Regulator, 3A/2A, 4.5-18V","metaDescription":"Texas Instruments TPS65251-1RHAT triple step-down buck regulator. 3A and 2A outputs, adjustable, 300kHz-2.2MHz, -40°C to 125°C, 40-VFQFN. Active production.","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":"40-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"3A, 2A","Number of Outputs":"3","Base Product Number":"TPS65251","Output Configuration":"Positive","Frequency - Switching":"300kHz ~ 2.2MHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"18V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"17V","Supplier Device Package":"40-VQFN (6x6)","Voltage - Output (Min/Fixed)":"0.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6455","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e353daf2958e0545163094d83a42490c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65251-1RHAT/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65251-1RHAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65251-1RHAT 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}}