{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS628120MQWRWYRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS628120MQWRWYRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS628120MQWRWYRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS628120MQWRWYRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS628120MQWRWYRQ1, Automotive AEC-Q100, Step-Down Buck Converter, 2A Output, Fixed 1.8V, 1.8MHz-4MHz Switching, -40°C to 125°C, 9-VFQFN Package.","salesMarkdown":"## Automotive-grade 2A buck for under-hood rails The TPS628120MQWRWYRQ1 is a fixed-output 1.8V step-down buck converter from TI's automotive-grade portfolio, rated for 2A continuous output. It integrates a synchronous rectifier. ## Switching frequency: inductor size vs efficiency trade The 1.8MHz-to-4MHz switching range is the key BOM lever. At 4 MHz the inductor value drops to sub-1 µH, saving board area and component height — useful in a 9-VFQFN (3x2 mm) layout. ## 2.75V to 6V input — single-cell Li-ion and 5V rails The input range spans 2.75V to 6V, covering single-cell Li-ion (3.0V–4.2V) and regulated 5V supplies. The 2A output supports powering a 1.8V core rail for an MCU, FPGA, or SoC with margin. The synchronous rectifier keeps the dropout low at high load, so the output stays regulated even as the input sags toward 2.75V. ## 9-VFQFN with wettable flank for AOI The 9-VFQFN (3x2 mm) package with wettable flanks allows automated optical inspection (AOI) of the solder joints on the side — a requirement for automotive production lines. The base product number TPS628120 covers multiple fixed-output voltage options in the same footprint, so a voltage change later does not force a layout revision.","metaTitle":"TI TPS628120MQWRWYRQ1 Automotive Buck Converter, 2A","metaDescription":"Texas Instruments TPS628120MQWRWYRQ1 step-down buck converter, 2A output, 1.8MHz-4MHz switching, -40°C to 125°C, AEC-Q100. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount, Wettable Flank","Package / Case":"9-VFQFN","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"2A","Number of Outputs":"1","Base Product Number":"TPS628120","Output Configuration":"Positive","Frequency - Switching":"1.8MHz ~ 4MHz","Operating Temperature":"-40°C~125°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"6V","Voltage - Input (Min)":"2.75V","Voltage - Output (Max)":"-","Supplier Device Package":"9-VQFN-HR (3x2)","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f463354a869dac3174e1ad527fed2d83.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS628120MQWRWYRQ1/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS628120MQWRWYRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS628120MQWRWYRQ1 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}}