{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3839G33DBZT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3839G33DBZT","canonicalUrl":"https://icboms.com/texas-instruments/TPS3839G33DBZT","factsUrl":"https://icboms.com/api/mcp/products/TPS3839G33DBZT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3839G33DBZT, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 3.08V Threshold, 120ms Minimum Reset Timeout, SOT-23-3 Package, -40°C to 85°C.","salesMarkdown":"It is designed to hold a microcontroller or DSP in reset until the supply has been stable for at least 120ms, giving the oscillator and core logic time to settle. The output is active-low push-pull, so it drives the reset pin directly without needing an external pull-up resistor. ## 3.08V threshold — why that number matters for 3.3V systems The 3.08V threshold sits about 7% below a nominal 3.3V rail. That margin keeps the reset from triggering on normal ripple or load transients, but still catches a brownout before the logic rails collapse. For a 3.3V microcontroller, this threshold is a good fit — it trips before the processor's minimum operating voltage, so the reset is asserted while the supply is still high enough for the reset logic to function. Housed in a three-pin SOT-23-3 package, the TPS3839G33DBZT takes up minimal board area — about 2.9 mm × 1.6 mm. Surface-mount assembly is straightforward; the small footprint means it fits on the back of a densely populated board or near the processor's supply pins.","metaTitle":"TPS3839G33DBZT Simple Reset/Power-On Reset, 3.08V Threshold","metaDescription":"Texas Instruments TPS3839G33DBZT simple reset IC, active-low push-pull output, 3.08V threshold, 120ms timeout, SOT-23-3 package.","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":"120ms Minimum","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3839","Voltage - Threshold":"3.08V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8db2a3e3b3bb51ea8ca211210c7cfea5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3839G33DBZT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3839G33DBZT active low or active high reset?","answer":"The reset output is active low. When the supply voltage falls below the 3.08V threshold, the output goes low and holds the reset state. The output is push-pull, so it drives the reset pin directly without an external pull-up."},{"question":"What package does TPS3839G33DBZT come in?","answer":"It comes in a three-pin SOT-23-3 package (also referred to as TO-236-3 or SC-59). The supplier device package is SOT-23-3, and it is intended for surface-mount assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3839G33DBZT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3839G33DBZT 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}}