{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3128E15DBVT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3128E15DBVT","canonicalUrl":"https://icboms.com/texas-instruments/TPS3128E15DBVT","factsUrl":"https://icboms.com/api/mcp/products/TPS3128E15DBVT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3128E15DBVT, Simple Reset/Power-On Reset, Active Low, Open Drain, 1.43V threshold, 100ms minimum reset timeout, -40°C to 85°C, SOT-23-5 package.","salesMarkdown":"## 1.43V threshold — what it monitors and why Its reset threshold is 1.43V, making it a fit for 1.5V or 1.8V core supplies in DSPs, MCUs, or FPGAs that require a precise undervoltage lockout during power-up or brownout conditions. The reset output is active-low, open-drain — the pin pulls low when the monitored voltage drops below 1.43V, and releases after a minimum 100ms timeout once the rail recovers. The open-drain topology lets you pull up the reset line to any voltage up to the absolute maximum of the output transistor, which is useful when the reset input on the processor runs at a different logic level than the monitored supply.","metaTitle":"TPS3128E15DBVT Simple Reset/Power-On Reset IC","metaDescription":"Texas Instruments TPS3128E15DBVT simple reset/power-on reset IC with active-low open-drain output, 1.43V threshold, 100ms min timeout, -40°C to 85°C, SOT-23-5.","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":"Open Drain or Open Collector","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":"TPS3128","Voltage - Threshold":"1.43V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8123","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/33ce582e7a8405bef9aabe534ac434b3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3128E15DBVT/alternatives.json"},"ai":{"faq":[{"question":"What is the exact reset threshold voltage of TPS3128E15DBVT?","answer":"The reset threshold voltage is 1.43V. This is the voltage at which the device asserts a reset (active-low, open-drain output) when the monitored rail falls below that level."},{"question":"Can TPS3128E15DBVT be used with a 1.8V or 3.3V supply?","answer":"Yes. The device monitors a single rail with a 1.43V threshold, so it is suited for a 1.5V or 1.8V supply. For a 3.3V rail, the 1.43V threshold would assert reset well below the nominal operating voltage — that is not the intended use. The open-drain output can be pulled up to 3.3V or 1.8V independently of the monitored rail."},{"question":"What is the difference between TPS3128E15DBVT and TPS3128E15DBVR?","answer":"The two suffixes — DBVT and DBVR — refer to different packaging and reel options within the same SOT-23-5 package. DBVT is Tape & Reel (TR) with a specific reel quantity; DBVR is also Tape & Reel but with a different reel count or tape width. The electrical specifications (threshold, timeout, temperature range) are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3128E15DBVT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3128E15DBVT 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}}