{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3305-18DGN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3305-18DGN","canonicalUrl":"https://icboms.com/texas-instruments/TPS3305-18DGN","factsUrl":"https://icboms.com/api/mcp/products/TPS3305-18DGN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3305-18DGN multi-voltage supervisor, dual-channel, thresholds 1.68V and 2.93V, push-pull active-high/active-low reset outputs, 140ms reset timeout, 8-HVSSOP package, -40°C to 85°C.","salesMarkdown":"## Dual-rail supervisor for mixed-voltage systems The Texas Instruments TPS3305-18DGN is a multi-voltage supervisor that monitors two supply rails simultaneously — one at 1.68V and the other at 2.93V — and asserts a reset when either rail drops below its threshold. It provides both active-high and active-low reset outputs in a push-pull, totem-pole configuration, giving the designer flexibility to interface with processor reset inputs that expect either polarity. ## Threshold selection and rail compatibility The 1.68V threshold is sized for 1.8V logic rails — typical of DDR memory or low-voltage I/O banks — while the 2.93V threshold covers 3.0V or 3.3V supplies with enough margin to catch a brownout before the downstream logic fails. Monitoring two voltages in one package saves board space and reduces component count compared to using two single-channel supervisors, which matters in dense designs like base stations or industrial controllers.","metaTitle":"TPS3305-18DGN Multi-Voltage Supervisor","metaDescription":"Texas Instruments TPS3305-18DGN multi-voltage supervisor monitors two rails at 1.68V and 2.93V. Active product, industrial temp range -40°C to 85°C.","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":"Tube","Mounting Type":"Surface Mount","Reset Timeout":"140ms Minimum","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","Product Status":"Active","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-HVSSOP","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.2700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bd03fa4e6c734212c88b5d1bdcc4e27a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3305-18DGN/alternatives.json"},"ai":{"faq":[{"question":"What supply rails can the TPS3305-18DGN monitor?","answer":"It monitors two rails: one at a 1.68V threshold (for 1.8V supplies) and one at a 2.93V threshold (for 3.0V or 3.3V supplies). The reset asserts when either rail drops below its respective threshold."},{"question":"What is the reset timeout for TPS3305-18DGN?","answer":"The reset timeout has a minimum of 140ms. This means after the monitored voltages rise above their thresholds, the reset outputs stay asserted for at least 140ms before releasing the processor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3305-18DGN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3305-18DGN 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}}