{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3123J18DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3123J18DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3123J18DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3123J18DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3123J18DBVR Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 1.62V Threshold, 100ms Minimum Reset Timeout, SOT-23-5, -40°C to 85°C.","salesMarkdown":"## 1.62V threshold supervisor for 1.8V rails The 1.62V threshold is set for a nominal 1.8V supply — the undervoltage trip point sits about 10% below the rail, which is a typical margin for catching brownout conditions without nuisance resets on normal ripple. The output is active-low push-pull with a minimum reset timeout of 100ms, which gives downstream logic time to stabilise after the supply returns above threshold. ## Industrial temperature and SOT-23-5 footprint The SOT-23-5 package (SC-74A, SOT-753) is a 5-pin surface-mount footprint with 0.95 mm pitch. It routes easily on a 2-layer board and shares a common land pattern across the TPS3123 family, so a threshold variant swap doesn't require a layout change.","metaTitle":"TPS3123J18DBVR Simple Reset/Power-On Reset, 1.62V Threshold","metaDescription":"Texas Instruments TPS3123J18DBVR Simple Reset/Power-On Reset IC. Active-low push-pull output, 1.62V threshold, 100ms min reset timeout. SOT-23-5, -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":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"100ms Minimum","Package / Case":"SC-74A, SOT-753","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3123","Voltage - Threshold":"1.62V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.5500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/33ce582e7a8405bef9aabe534ac434b3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3123J18DBVR/alternatives.json"},"ai":{"faq":[{"question":"What voltage does TPS3123J18DBVR monitor?","answer":"The TPS3123J18DBVR monitors a single supply rail with a fixed threshold of 1.62V, designed for a nominal 1.8V rail."},{"question":"Is TPS3123J18DBVR active low reset?","answer":"Yes, the reset output is active low with a push-pull, totem-pole output stage. It asserts low when the monitored voltage falls below 1.62V and releases after a minimum 100ms timeout once the rail recovers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3123J18DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3123J18DBVR 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}}