{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS51285BRUKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS51285BRUKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS51285BRUKR","factsUrl":"https://icboms.com/api/mcp/products/TPS51285BRUKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments D-CAP™ series TPS51285BRUKR quad-output PMIC, step-down (buck) synchronous controller (2) + linear LDO (2), 5V-24V input, 400/475kHz switching, 20-WQFN (3x3mm), Tape & Reel.","salesMarkdown":"## Active production, four-rail system PMIC The TPS51285BRUKR is an active-production Texas Instruments D-CAP™ series PMIC that packs two synchronous buck controllers and two linear LDO regulators into a single 20-WFQFN package. Its 5V to 24V input range covers common system rails from a 5V USB supply up through a 19V laptop adapter, making it a natural fit for multi-rail embedded designs that need both high-current switched rails and a clean analog supply. ## What the four outputs actually do for your BOM Two of the four outputs are controller-only — they drive external MOSFETs for the buck converters, so the actual output current depends on your FET and inductor choice. The other two are integrated LDOs: one fixed at 3.3V delivering 100mA, the other is a general-purpose linear regulator. This split means the part handles the main system rail (buck), a core or I/O rail (second buck), and two small analog or standby rails (LDOs) without separate LDO ICs. Switching frequency is set to 400kHz on one controller and 475kHz on the other — close enough that a single inductor family can serve both, but offset enough to spread the switching harmonics and reduce input filter ripple. The D-CAP™ control scheme gives fast transient response without external compensation components, which saves two or three passives per rail compared to a traditional voltage-mode buck. ## Package, temperature, and layout notes The 20-WFQFN with exposed pad (3x3mm body, 0.5mm pitch) demands a solid thermal via pattern under the pad to pull heat into the ground plane. The -40°C to 85°C operating range covers industrial enclosures and outdoor telecom gear but stops short of automotive under-hood temperatures. ROHS3 compliance means no exemptions for lead in solder — standard reflow profiles apply. ## Sourcing and availability It is supplied in Tape & Reel (TR) or Cut Tape (CT) options. For volume BOM positions, the part is quoted to order through independent distribution — availability and current pricing are confirmed at RFQ time. No pin-compatible second source is listed in the TI D-CAP™ family, so the BOM should treat this as a single-source line item.","metaTitle":"TI TPS51285BRUKR Quad Buck/LDO Regulator, 5-24V, Active","metaDescription":"TPS51285BRUKR from Texas Instruments: quad-output PMIC with 2 buck controllers and 2 LDOs. 5V-24V input, 400/475kHz switching. Active, ROHS3. Request a quote.","metaKeywords":null},"attributes":{"series":"D-CAP™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"D-CAP™","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Down (Buck) Synchronous (2), Linear (LDO) (2)","w/Sequencer":"No","w/LED Driver":"No","w/Supervisor":"No","Mounting Type":"Surface Mount","Package / Case":"20-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"5V ~ 24V","Number of Outputs":"4","Frequency - Switching":"400kHz, 475kHz","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"20-WQFN (3x3)","Voltage/Current - Output 1":"Controller","Voltage/Current - Output 2":"Controller","Voltage/Current - Output 3":"3.3V, 100mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.67","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.67000","currency":"USD"},{"qty":10,"price":"$1.50200","currency":"USD"},{"qty":25,"price":"$1.41640","currency":"USD"},{"qty":100,"price":"$1.20690","currency":"USD"},{"qty":250,"price":"$1.13320","currency":"USD"},{"qty":500,"price":"$0.99156","currency":"USD"},{"qty":1000,"price":"$0.82158","currency":"USD"},{"qty":3000,"price":"$0.76492","currency":"USD"},{"qty":6000,"price":"$0.73659","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/68a4860d67751c6786872386ed7a0956.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is TPS51285BRUKR compatible with DDR memory?","answer":"The part provides two buck controllers and two LDOs, but neither output is specifically a DDR VTT termination rail. For DDR power, you would typically need a dedicated sink/source LDO (like a TPS51200). The TPS51285BRUKR could supply the VDDQ rail via a buck controller, but a separate VTT regulator would still be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS51285BRUKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS51285BRUKR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}