{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3839A09DBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3839A09DBZR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3839A09DBZR","factsUrl":"https://icboms.com/api/mcp/products/TPS3839A09DBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3839A09DBZR, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 0.9V Threshold, 120ms Minimum Reset Timeout, SOT-23-3, -40°C to 85°C.","salesMarkdown":"## 0.9V threshold — why this supervisor exists That 0.9V threshold targets the core supplies of low-voltage processors, FPGAs, and SoCs where a 1.8V or 3.3V supervisor would never trip — the processor would start executing on a brownout and corrupt memory. The active-low, push-pull output drives the reset pin directly without an external pull-up resistor, and the SOT-23-3 package fits into tight layouts on a two-layer board. The SOT-23-3 footprint is a standard three-pin device — the reset output, ground, and VDD — so layout is straightforward and the same pad pattern works across the TPS3839 family if you need a different threshold voltage later. The base product number TPS3839 covers multiple threshold options in the same SOT-23-3 footprint, so a BOM change to a different voltage variant is a drop-in swap.","metaTitle":"TPS3839A09DBZR Simple Reset/Power-On Reset, 0.9V Threshold","metaDescription":"Texas Instruments TPS3839A09DBZR simple reset/power-on reset IC with active-low push-pull output, 0.9V threshold, 120ms min timeout, SOT-23-3, -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":"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":"0.9V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3105","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8db2a3e3b3bb51ea8ca211210c7cfea5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3839A09DBZR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in the TPS3839 family?","answer":"The TPS3839 family shares the same SOT-23-3 footprint and pinout across multiple threshold voltages. If your design needs a different trip point — for example 1.8V or 3.3V — the corresponding TPS3839 variant is a drop-in replacement without a board spin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3839A09DBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3839A09DBZR 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}}