{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3306-25D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3306-25D","canonicalUrl":"https://icboms.com/texas-instruments/TPS3306-25D","factsUrl":"https://icboms.com/api/mcp/products/TPS3306-25D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3306-25D, Multi-Voltage Supervisor, Active Low, Open Drain or Open Collector, 8-SOIC, Surface Mount, -40°C~85°C, 2.25V, 2.93V thresholds.","salesMarkdown":"## Two-rail watchdog for mixed-voltage boards The Texas Instruments TPS3306-25D is a dual-voltage supervisor designed to monitor two independent supply rails — one at 2.25V and the other at 2.93V — and assert a common active-low reset signal when either rail drops below its threshold. The open-drain output allows wire-ORing with other reset sources or level-shifting to the processor's reset input via an external pull-up resistor. ## 70 ms reset timeout — what it buys the system The reset timeout is rated at 70 ms minimum. That is long enough to cover most processor power-on reset hold requirements and to debounce supply glitches that last a few milliseconds. If your processor specifies a reset pulse width shorter than 70 ms, this part meets it with margin — the timeout starts after the monitored rails rise above the threshold, so the processor stays in reset until both supplies are stable and the timer expires.","metaTitle":"TPS3306-25D Multi-Voltage Supervisor, Active Low, Open Drain","metaDescription":"Texas Instruments TPS3306-25D dual-voltage supervisor monitors 2.25V and 2.93V rails. Active-low open-drain output, 70ms min reset timeout.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"Multi-Voltage Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Series":"-","Package":"Tube","Mounting Type":"Surface Mount","Reset Timeout":"70ms Minimum","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3306","Voltage - Threshold":"2.25V, 2.93V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"8-SOIC","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4969","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3306-25D/alternatives.json"},"ai":{"faq":[{"question":"What is the TPS3306-25D used for?","answer":"The TPS3306-25D is a multi-voltage supervisor that monitors two supply rails (2.25V and 2.93V) and asserts an active-low reset when either rail falls below its threshold. It is used in mixed-voltage digital systems — for example, a 3.3V microcontroller core with a 2.5V memory or I/O rail — to ensure the processor stays in reset until both supplies are stable."},{"question":"What is the reset timeout for TPS3306-25D?","answer":"The reset timeout is a minimum of 70 ms. The timer starts after both monitored supply rails rise above their respective thresholds, holding the processor in reset until the full timeout period elapses."},{"question":"Can TPS3306-25D be used for dual supply monitoring?","answer":"Yes, that is its primary function. It monitors two independent voltage rails — one with a 2.25V threshold and the other with a 2.93V threshold — and asserts a common active-low reset output when either rail is out of tolerance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3306-25D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3306-25D 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}}