{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65400RGZT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65400RGZT","canonicalUrl":"https://icboms.com/texas-instruments/TPS65400RGZT","factsUrl":"https://icboms.com/api/mcp/products/TPS65400RGZT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65400RGZT quad-output synchronous buck regulator, adjustable output from 0.6V to 16.2V, 4A/2A per channel, 275kHz–2.2MHz switching, 48-VFQFN exposed pad, -40°C~125°C.","salesMarkdown":"## Quad 4A/2A step-down — load allocation and rail assignment The TPS65400RGZT from Texas Instruments is a four-output synchronous buck regulator that delivers 4 A on two channels and 2 A on the other two, all from a single 4.5 V to 18 V input rail. The adjustable outputs down to 0.6 V make it a direct fit for powering FPGAs, SoCs, and multi-rail processor cores where each voltage domain needs its own regulator with independent sequencing. ## Switching frequency range — inductor sizing vs efficiency trade-off Running at the low end minimises switching losses and lets you use a larger inductor with lower DCR for better efficiency at heavy loads. At the high end, you shrink the inductor footprint and output capacitor bank — useful when board area is tight, though at the cost of slightly higher FET switching losses. For a quad-rail power management IC that often gets designed into multi-year industrial or telecom platforms, this means you can commit the BOM without worrying about a last-time-buy window opening mid-production.","metaTitle":"TPS65400RGZT Quad Buck Regulator, 4A/2A, 275kHz–2.2MHz","metaDescription":"Texas Instruments TPS65400RGZT quad step-down buck regulator. 4A/2A outputs, adjustable 275kHz–2.2MHz switching. Active, industrial temp.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"48-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"4A, 2A","Number of Outputs":"4","Base Product Number":"TPS65400","Output Configuration":"Positive","Frequency - Switching":"275kHz ~ 2.2MHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"18V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"16.2V","Supplier Device Package":"48-VQFN (7x7)","Voltage - Output (Min/Fixed)":"0.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.9100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c966479fc24ac192b0ec7f776d6351c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65400RGZT/alternatives.json"},"ai":{"faq":[{"question":"What are the output current ratings of TPS65400RGZT?","answer":"Two outputs are rated at 4 A each, and the remaining two at 2 A each. All four outputs are adjustable from 0.6 V up to 16.2 V, with synchronous rectification on every channel."},{"question":"What is the switching frequency range of TPS65400RGZT?","answer":"The switching frequency is programmable between 275 kHz and 2.2 MHz via an external resistor, allowing the designer to optimise for inductor size or efficiency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65400RGZT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65400RGZT 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}}