{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3820-33DBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3820-33DBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS3820-33DBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TPS3820-33DBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3820-33DBVRG4, Simple Reset/Power-On Reset IC, Active Low, Push-Pull Output, 2.93V Threshold, 15ms Reset Timeout, -40°C to 85°C, SOT-23-5 Package.","salesMarkdown":"## 2.93V threshold — matching the 3.3V rail When the monitored voltage drops below this level, the active-low reset output (push-pull, totem pole) asserts and holds the processor in reset until the supply recovers and stays above the threshold for the minimum 15 ms reset timeout period. This part is a drop-in supervisor for 3.3V systems where a clean, deterministic power-up and brown-out reset is required — common in industrial control, motor drives, and telecom equipment. ## Reset timeout — why 15 ms minimum matters The 15 ms minimum reset timeout ensures the processor's supply and oscillator have stabilised before the reset is released. For a typical MCU with a 10 ms power-on reset requirement, this provides 5 ms of margin — enough to cover supply ramp-up and crystal start-up without external delay components. No official successor or second-source cross-reference is listed; the base product number TPS3820 family includes other threshold options if the 2.93V level is not the right fit.","metaTitle":"TPS3820-33DBVRG4 Simple Reset/Power-On Reset","metaDescription":"Texas Instruments TPS3820-33DBVRG4 simple reset/power-on reset IC. Active-low push-pull output, 2.93V threshold, 15ms reset 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":"Push-Pull, Totem Pole","Series":"-","Package":"Tape & Reel (TR)","Mounting Type":"Surface Mount","Reset Timeout":"15ms Minimum","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Base Product Number":"TPS3820","Voltage - Threshold":"2.93V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fa41d36737292d75f54b3a8afbef0279.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3820-33DBVRG4/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3820-33DBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3820-33DBVRG4 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}}