{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3305-18DRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3305-18DRG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS3305-18DRG4","factsUrl":"https://icboms.com/api/mcp/products/TPS3305-18DRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3305-18DRG4 multi-voltage supervisor, monitors two voltages at 1.68V and 2.93V thresholds, push-pull active high/active low reset, 140ms minimum reset timeout, 8-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## Two-rail supervisor in an SOIC-8 footprint The Texas Instruments TPS3305-18DRG4 is a multi-voltage supervisor that monitors two supply rails with thresholds at 1.68 V and 2.93 V, generating a push-pull reset output that is both active high and active low. The 140 ms minimum reset timeout holds downstream logic in reset long enough for the core supply to stabilise after power-up or a brown-out event. ## Thresholds and reset behaviour for mixed-voltage boards The 1.68 V threshold suits a 1.8 V core rail — the supervisor asserts reset when that rail drops below the threshold, protecting the logic from undefined states. The 2.93 V threshold covers a 3.3 V I/O or memory rail, so a single TPS3305-18DRG4 replaces two separate supervisor ICs in a dual-voltage system. Both active-high and active-low outputs are available from the same device, giving the designer flexibility to drive reset inputs of opposite polarity without an inverter. No last-time-buy window or successor part number has been issued.","metaTitle":"TPS3305-18DRG4 Multi-Voltage Supervisor","metaDescription":"Texas Instruments TPS3305-18DRG4 multi-voltage supervisor monitors two rails at 1.68V and 2.93V with 140ms 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 High/Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Reset Timeout":"140ms Minimum","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Base Product Number":"TPS3305","Voltage - Threshold":"1.68V, 2.93V","Operating Temperature":"-40°C~85°C(TJ)","Supplier Device Package":"8-SOIC","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bd03fa4e6c734212c88b5d1bdcc4e27a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3305-18DRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3305-18DRG4?","answer":"The reset timeout is 140 ms minimum, which gives downstream devices enough time to initialise after the monitored rails reach their valid levels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3305-18DRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3305-18DRG4 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}}