{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65321AQPWPRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65321AQPWPRQ1","canonicalUrl":"https://icboms.com/texas-instruments/TPS65321AQPWPRQ1","factsUrl":"https://icboms.com/api/mcp/products/TPS65321AQPWPRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65321AQPWPRQ1, Automotive AEC-Q100, dual-output PMIC: step-down buck (1.1V-20V, 3.2A) + LDO (1.1V-5.5V, 280mA), 3V-36V supply, 100kHz-2.5MHz switching, -40°C-125°C, 14-HTSSOP.","salesMarkdown":"## Dual-rail automotive PMIC in a 14-pin HTSSOP The Texas Instruments TPS65321AQPWPRQ1 combines a step-down buck converter rated for 3.2A output with a 280mA LDO in a single 14-HTSSOP package. The buck output is adjustable from 1.1V to 20V; the LDO covers 1.1V to 5.5V. Input supply range spans 3V to 36V, covering nominal 12V and 24V automotive buses with headroom for load-dump transients. The buck converter delivers up to 3.2A. The LDO provides 280mA. The integrated supervisor monitors the output rails and asserts a reset on undervoltage — one less external voltage monitor on the BOM. No sequencer means the buck and LDO power up simultaneously; if sequenced rails are required, an external sequencer or a PMIC with that feature is needed. ## Package and thermal: 14-HTSSOP with exposed pad","metaTitle":"TPS65321AQPWPRQ1 Automotive PMIC, Buck + LDO, AEC-Q100","metaDescription":"Texas Instruments TPS65321AQPWPRQ1 dual-output PMIC: buck 3.2A + LDO 280mA, 3V-36V input, -40°C to 125°C, AEC-Q100 qualified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Down (Buck) (1), Linear (LDO) (1)","w/Sequencer":"No","w/LED Driver":"No","w/Supervisor":"Yes","Mounting Type":"Surface Mount","Package / Case":"14-PowerTSSOP (0.173\\\", 4.40mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 36V","Number of Outputs":"2","Base Product Number":"TPS65321","Frequency - Switching":"100kHz ~ 2.5MHz","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"14-HTSSOP","Voltage/Current - Output 1":"1.1V ~ 20V, 3.2A","Voltage/Current - Output 2":"1.1V ~ 5.5V, 280mA","Voltage/Current - Output 3":"Adjustable"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2316c18aae842621fbf2328847e0593a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65321AQPWPRQ1/alternatives.json"},"ai":{"faq":[{"question":"Is TPS65321AQPWPRQ1 automotive grade and AEC-Q100 qualified?","answer":"Yes, the TPS65321AQPWPRQ1 is listed under the Automotive, AEC-Q100 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65321AQPWPRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65321AQPWPRQ1 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}}