{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3831A09DQNT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3831A09DQNT","canonicalUrl":"https://icboms.com/texas-instruments/TPS3831A09DQNT","factsUrl":"https://icboms.com/api/mcp/products/TPS3831A09DQNT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3831A09DQNT, Simple Reset/Power-On Reset, 1-channel supervisor, 0.9V threshold, 120ms min reset timeout, push-pull active-low output, -40°C to 85°C, 4-X2SON (1x1) package.","salesMarkdown":"## 0.9V threshold for low-voltage core rails The TPS3831A09DQNT monitors a single supply rail at 0.9V threshold — a common point for sub-1V digital cores in low-power MCUs and SoCs. The active-low reset output is push-pull, which means no external pull-up resistor is needed and the reset signal stays clean without extra supply current. ## Package and footprint for tight boards Housed in a 4-X2SON package measuring 1x1 mm, this supervisor fits into space-constrained designs like sensor nodes or handheld instruments. The exposed pad aids thermal transfer to the PCB ground plane — critical when the device is powered continuously in a sealed enclosure. Surface-mount assembly with tape-and-reel or cut-tape options suits both prototyping and volume production. The 4-pin footprint keeps routing simple; no external components are required for basic operation. For BOM planning, the base product number TPS3831 shares the same pinout and threshold options across the family, making it straightforward to qualify a voltage variant if the core rail changes in a future revision.","metaTitle":"TPS3831A09DQNT Voltage Supervisor – 0.9V Threshold","metaDescription":"Texas Instruments TPS3831A09DQNT Simple Reset/Power-On Reset IC. 0.9V threshold, 120ms reset timeout, push-pull output, -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":"TPS3831","Voltage - Threshold":"0.9V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"4-X2SON (1x1)","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6100","priceTiers":[{"qty":1,"price":"$1.61000","currency":"USD"},{"qty":10,"price":"$1.43800","currency":"USD"},{"qty":25,"price":"$1.36520","currency":"USD"},{"qty":100,"price":"$1.12150","currency":"USD"},{"qty":250,"price":"$1.04832","currency":"USD"},{"qty":500,"price":"$0.92644","currency":"USD"},{"qty":1250,"price":"$0.73140","currency":"USD"},{"qty":2500,"price":"$0.69000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/171738cafab7c3368a7e7902c6be9c34.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3831A09DQNT/alternatives.json"},"ai":{"faq":[{"question":"Does TPS3831A09DQNT have a push-pull output?","answer":"Yes, the output is push-pull, totem pole, active low. No external pull-up resistor is needed."},{"question":"What is the reset timeout of TPS3831A09DQNT?","answer":"The reset timeout is 120ms minimum. After the supply rises above the threshold, the reset output remains low for at least 120ms before releasing."},{"question":"What is the closest functional second-source for TPS3831A09DQNT?","answer":"The TLV803EA29VDBZR is a similar simple reset IC with active-low output, but its output is open-drain (requires a pull-up) and its threshold is 2.9V. The TPS3831A09DQNT's 0.9V threshold and push-pull output make it a distinct fit for sub-1V rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3831A09DQNT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3831A09DQNT 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}}