{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS621351RGXR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS621351RGXR","canonicalUrl":"https://icboms.com/texas-instruments/TPS621351RGXR","factsUrl":"https://icboms.com/api/mcp/products/TPS621351RGXR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS621351RGXR, Step-Down Buck Converter, 4A Output, 2.5MHz Switching, Adjustable Output, 3V to 17V Input, 11-VFQFN-HR (2x3), -40°C to 125°C.","salesMarkdown":"## 4A buck converter in a 2x3 mm package The 2.5 MHz switching frequency lets you use small 1 µH inductors and 10 µF ceramic output capacitors, shrinking the total solution footprint around the 11-VFQFN-HR (2x3) package. ## Switching frequency and inductor sizing At 2.5 MHz the converter stays above the AM band, which simplifies EMI filtering in noise-sensitive equipment. The high frequency also means the inductor ripple current is low enough that a 1 µH rated for 4 A saturation handles the full load without excessive core loss.","metaTitle":"TPS621351RGXR Buck Converter, 4A, 2.5MHz, 11-VFQFN","metaDescription":"Texas Instruments TPS621351RGXR step-down buck converter, 4A output, 2.5MHz switching, 3V-17V input, -40°C to 125°C. Active, available to order.","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":"11-VFQFN","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"4A","Number of Outputs":"1","Base Product Number":"TPS621351","Output Configuration":"Positive","Frequency - Switching":"2.5MHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"17V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"12V","Supplier Device Package":"11-VQFN-HR (2x3)","Voltage - Output (Min/Fixed)":"0.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/51daae49dea160f03cb5ca7021440189.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS621351RGXR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to TPS621351RGXR?","answer":"The TPS621351RGYR shares the same base product number and pinout but ships in a different reel quantity. Confirm the package suffix matches your assembly line before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS621351RGXR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS621351RGXR 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}}