{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3839L30DQNR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3839L30DQNR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3839L30DQNR","factsUrl":"https://icboms.com/api/mcp/products/TPS3839L30DQNR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3839L30DQNR, Simple Reset/Power-On Reset supervisor, Active Low push-pull output, 2.63V threshold, 120ms minimum reset timeout, -40°C to 85°C, 4-X2SON (1x1) package.","salesMarkdown":"## What this supervisor does on your rail The TPS3839L30DQNR is a Texas Instruments Simple Reset/Power-On Reset IC that monitors a single supply rail and asserts a reset signal when the voltage drops below 2.63V threshold. The output is Active Low, push-pull, totem pole — it pulls low on fault and drives high when the supply is valid, no external pull-up needed. The 120ms minimum reset timeout holds the system in reset long enough for the supply to stabilise after a brown-out or power-up, preventing premature processor start-up that could cause code corruption. ## Threshold and timeout — sizing for your rail With a 2.63V threshold, this part is designed to supervise a 2.5V or 3.0V nominal supply rail — the reset asserts when the rail falls to 2.63V, which is typically 88% of 3.0V or 105% of 2.5V. For a 3.3V rail, the TPS3839L33DQNR variant with a higher threshold is the correct fit. The 120ms minimum reset timeout is fixed and non-adjustable — it suits most MCU boot sequences that need 50-100 ms of stable supply before release. If your system needs a longer delay, a supervisor with a programmable timeout or a larger capacitor on the delay pin would be required. It is ROHS3 compliant. The 4-X2SON (1x1) package is a small footprint that may require a specific stencil aperture for reliable solder paste deposition; confirm your assembly house can handle 1x1 mm packages before committing. Housed in a 4-X2SON (1x1) package — 1 mm x 1 mm, 4 leads, with an exposed pad for thermal dissipation.","metaTitle":"TPS3839L30DQNR Texas Instruments Simple Reset/Power-On","metaDescription":"Texas Instruments TPS3839L30DQNR Simple Reset/Power-On Reset, Active Low, Push-Pull output, 2.63V threshold, 120ms timeout, -40°C to 85°C, 4-X2SON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"4-XDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3839","Voltage - Threshold":"2.63V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"4-X2SON (1x1)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0200","priceTiers":[{"qty":1,"price":"$1.02000","currency":"USD"},{"qty":10,"price":"$0.91600","currency":"USD"},{"qty":25,"price":"$0.86920","currency":"USD"},{"qty":100,"price":"$0.71400","currency":"USD"},{"qty":250,"price":"$0.66744","currency":"USD"},{"qty":500,"price":"$0.58984","currency":"USD"},{"qty":1000,"price":"$0.46566","currency":"USD"},{"qty":3000,"price":"$0.33814","currency":"USD"},{"qty":6000,"price":"$0.33000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8db2a3e3b3bb51ea8ca211210c7cfea5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3839L30DQNR/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between TPS3839L30DQNR and TPS3839L33DQNR?","answer":"The TPS3839L30DQNR has a 2.63V threshold for supervising 2.5V or 3.0V rails, while the TPS3839L33DQNR uses a higher threshold (typically 2.93V) for 3.3V rails. All other specs — 120ms timeout, Active Low push-pull output, 4-X2SON package, -40°C to 85°C range — are identical."},{"question":"Can TPS3839L30DQNR be used with 3.3V logic?","answer":"The output is push-pull and will drive a 3.3V logic input directly — the output high voltage tracks the supply rail, which is typically 3.0V or 2.5V. For a 3.3V rail, use the TPS3839L33DQNR variant with the appropriate threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3839L30DQNR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3839L30DQNR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}