{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS62321YZDR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS62321YZDR","canonicalUrl":"https://icboms.com/texas-instruments/TPS62321YZDR","factsUrl":"https://icboms.com/api/mcp/products/TPS62321YZDR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS62321YZDR, Step-Down Buck Regulator, 3 MHz Switching, Fixed 1.5 V Output, 500 mA, 8-DSBGA, -40°C to 85°C.","salesMarkdown":"## 3 MHz synchronous buck — small solution for 1.5 V rails The high switching frequency lets you use a 1 µH or smaller inductor and a 4.7 µF output capacitor, keeping the total solution footprint under 15 mm² — useful when board area is tight and the load is a 1.5 V core rail. ## Input range and output — Li-ion to 5 V rail The 2.7 V minimum input covers a single Li-ion cell through its discharge curve; the 6 V maximum handles a regulated 5 V bus with margin. The fixed 1.5 V output is set internally — no external divider network, so the BOM stays at one inductor, two capacitors, and the IC. Synchronous rectification eliminates the external Schottky diode and keeps efficiency above 90% at moderate loads. TI lists the TPS62321YZDR as obsolete. The 8-DSBGA package is a 0.5 mm pitch wafer-level chip-scale package; the copper pad layout on the PCB must match the TI recommended footprint for reliable solder joints.","metaTitle":"TPS62321YZDR Step-Down Regulator, 3 MHz, 500 mA, Obsolete","metaDescription":"TI TPS62321YZDR 3 MHz synchronous buck regulator, 2.7 V–6 V input, fixed 1.5 V output, 500 mA.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-UFBGA, DSBGA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Current - Output":"500mA","Number of Outputs":"1","Base Product Number":"TPS623","Output Configuration":"Positive","Frequency - Switching":"3MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"6V","Voltage - Input (Min)":"2.7V","Voltage - Output (Max)":"-","Supplier Device Package":"8-DSBGA","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/664e85230a0dcba807f15e368bfeea9d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS62321YZDR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS62321YZDR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS62321YZDR 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}}