{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3802L30DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3802L30DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3802L30DCKR","factsUrl":"https://icboms.com/api/mcp/products/TPS3802L30DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3802L30DCKR simple reset/power-on reset, active low push-pull output, 2.64V threshold, 240ms minimum reset timeout, -40°C to 85°C, SC-70-5 package.","salesMarkdown":"## 2.64V threshold — the 3.3V rail watchdog That threshold is the typical undervoltage trip point for a 3.3V rail — it holds the processor in reset until the supply rises above the threshold and stays there for the 240ms minimum reset timeout period. The push-pull, totem-pole output drives the reset pin directly without needing an external pull-up resistor, which saves a component and avoids the indeterminate state an open-drain output sees when its pull-up supply is also ramping. ## 240ms reset timeout — boot sequencing margin For a system with a slow-starting DC-DC converter or a large bulk capacitor on the rail, this timeout prevents the MCU from trying to boot before the supply is within regulation. The timeout is a minimum — the actual period is longer at lower temperatures, but the 240ms floor is what the downstream logic sees as the guaranteed hold time. ## SC-70-5 footprint and temperature grade Housed in a 5-pin SC-70-5 (SOT-353) package, this reset IC takes minimal board area — about 2.0 mm × 2.1 mm — and is a surface-mount fit for dense PCB layouts. The single-voltage monitor keeps the BOM simple for designs that only need a supervisor on the main core rail.","metaTitle":"TI TPS3802L30DCKR Simple Reset/Power-On Reset, Active Low","metaDescription":"Texas Instruments TPS3802L30DCKR simple reset IC, active-low push-pull output, 2.64V threshold, 240ms min reset timeout, -40°C to 85°C, SC-70-5.","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); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"240ms Minimum","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3802","Voltage - Threshold":"2.64V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SC-70-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/353ab7aa064810346ed7462973d871e3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3802L30DCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the reset timeout of TPS3802L30DCKR?","answer":"The TPS3802L30DCKR has a minimum reset timeout of 240ms. This is the guaranteed period the reset output stays asserted after the monitored voltage rises above the 2.64V threshold — it gives the supply rail time to stabilise before the processor is released from reset."},{"question":"Can TPS3802L30DCKR monitor a 3.3V rail?","answer":"Yes — the 2.64V threshold is the typical undervoltage trip point for a 3.3V supply rail. The reset asserts when the rail drops below 2.64V and de-asserts after the 240ms timeout once the voltage rises above the threshold, which is the standard behaviour for a 3.3V supervisor."},{"question":"What is the output type of TPS3802L30DCKR?","answer":"The output is a push-pull, totem-pole configuration with active-low reset polarity. This means the reset pin is driven low when the monitored voltage is below threshold, and it drives high when the supply is good — no external pull-up resistor is needed on the reset line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3802L30DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3802L30DCKR 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}}