{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS628132MQWRWYRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS628132MQWRWYRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS628132MQWRWYRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS628132MQWRWYRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100 series, TPS628132MQWRWYRQ1, step-down (buck) regulator, fixed 1.8V output, 3A, 1.8MHz-4MHz switching, 9-VQFN-HR (3x2) package, active production.","salesMarkdown":"## 3A step-down in a 3x2 mm VQFN The TPS628132MQWRWYRQ1 is a Texas Instruments automotive-grade synchronous buck regulator delivering 3A continuous output from a 2.75V to 6V input rail, with a fixed 1.8V output. The 1.8MHz to 4MHz switching frequency range lets you shrink the inductor to a 2.2 µH or 1 µH footprint, which matters when the ECU board real estate is already consumed by the microcontroller and transceivers. The 9-VQFN-HR (3x2) package with wettable flank gives the production line an AOI-visible solder joint — no x-ray required for post-reflow inspection. ## Thermal and switching trade-offs The synchronous rectifier (integrated low-side FET) keeps efficiency above 90% at moderate loads, but at full 3A the power dissipation in the 3x2 mm package demands a solid thermal via pattern under the exposed pad — a four-layer board with 1 oz copper on the inner planes is the typical starting point. The 1.8V fixed output eliminates the feedback resistor divider, saving two external components and one potential noise injection point.","metaTitle":"TPS628132MQWRWYRQ1 Buck Regulator 3A 1.8V Fixed Output","metaDescription":"Texas Instruments TPS628132MQWRWYRQ1 automotive step-down regulator, 3A output, 1.8V fixed, 9-VQFN-HR package, active production.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"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":"3A","Number of Outputs":"1","Base Product Number":"TPS628132","Output Configuration":"Positive","Frequency - Switching":"1.8MHz ~ 4MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","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":"$2.6500","priceTiers":[{"qty":1,"price":"$2.65000","currency":"USD"},{"qty":10,"price":"$2.38200","currency":"USD"},{"qty":25,"price":"$2.24720","currency":"USD"},{"qty":100,"price":"$1.91470","currency":"USD"},{"qty":250,"price":"$1.79780","currency":"USD"},{"qty":500,"price":"$1.57308","currency":"USD"},{"qty":1000,"price":"$1.30340","currency":"USD"},{"qty":3000,"price":"$1.21351","currency":"USD"},{"qty":6000,"price":"$1.16857","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/851fc6440336a3f26e38460cff48b8ca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS628132MQWRWYRQ1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to TPS628132MQWRWYRQ1?","answer":"The key difference is output type — the TPS628132 is fixed at 1.8V, while the LMR33630 is adjustable. If your design requires a non-1.8V rail, the LMR33630 is the adjustable alternative; if you need the fixed 1.8V, the TPS628132 is the direct fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS628132MQWRWYRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS628132MQWRWYRQ1 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}}