{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65283-1RGET","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65283-1RGET","canonicalUrl":"https://icboms.com/texas-instruments/TPS65283-1RGET","factsUrl":"https://icboms.com/api/mcp/products/TPS65283-1RGET","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65283-1RGET, dual-output synchronous buck converter, 4.5V to 18V input, adjustable output from 0.6V to 9V, 3.5A and 2.5A per channel, 200kHz to 2MHz switching frequency, 24-VFQFN exposed pad, -40°C to 125°C.","salesMarkdown":"## Dual 3.5 A and 2.5 A rails from a single buck controller The TPS65283-1RGET from Texas Instruments is a dual-channel synchronous step-down (buck) converter that delivers 3.5 A on one output and 2.5 A on the other, both adjustable down to 0.6 V. It takes an input from 4.5 V up to 18 V, which covers common 5 V, 9 V, 12 V, and 15 V supply rails without needing a pre-regulator. The two outputs share a single controller but switch independently, so you can power, say, a 3.3 V logic rail and a 1.8 V I/O rail from the same chip. ## Switching frequency: inductor size vs. loss trade-off At the low end you get better efficiency because switching losses drop, but the inductor needs to be physically larger to handle the ripple current. At 2 MHz the inductor shrinks — good for a tight layout — but the FET switching losses go up, and the thermal budget gets tighter. The synchronous rectifier helps keep those losses manageable across the band. ## 24-VQFN with exposed pad — the thermal path is your layout The part comes in a 24-VFQFN with exposed pad (4 mm × 4 mm body, 24-VQFN package code). That pad underneath is the main heat path out of the die. The PCB layout needs a matching copper land with thermal vias down to the ground plane — without them the junction temperature climbs fast, especially at the full 3.5 A + 2.5 A load.","metaTitle":"TI TPS65283-1RGET Dual Buck Regulator, 3.5A/2.5A, 4.5-18V In","metaDescription":"Texas Instruments TPS65283-1RGET dual step-down buck converter. 3.5A and 2.5A outputs, adjustable down to 0.6V. 4.5V to 18V input, 200kHz-2MHz switching.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DC-DC Power Modules"],"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":"24-VFQFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"3.5A, 2.5A","Number of Outputs":"2","Base Product Number":"TPS65283","Output Configuration":"Positive","Frequency - Switching":"200kHz ~ 2MHz","Operating Temperature":"-40°C~125°C(TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"18V","Voltage - Input (Min)":"4.5V","Voltage - Output (Max)":"9V","Supplier Device Package":"24-VQFN (4x4)","Voltage - Output (Min/Fixed)":"0.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/56223bc67b694f2aceccd8f4c2377eaa.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65283-1RGET/alternatives.json"},"ai":{"faq":[{"question":"Does TPS65283-1RGET have an enable pin?","answer":"The evidence does not list a dedicated enable pin specification. The datasheet (available on the product page) details the full pinout and control logic — check the enable/disable sequencing there if your design needs a precise power-up order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65283-1RGET","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65283-1RGET 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}}