{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3801K33DCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3801K33DCKR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3801K33DCKR","factsUrl":"https://icboms.com/api/mcp/products/TPS3801K33DCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3801K33DCKR, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 2.93V Threshold, 120ms Minimum Reset Timeout, -40°C~85°C, SC-70-5 Package.","salesMarkdown":"## 2.93V threshold — the trip point that decides the BOM fit That 2.93V threshold is the exact trip point for a nominal 3.3V rail — it triggers before the downstream logic enters an undefined state, but stays above the minimum operating voltage of most 3.3V devices. The push-pull output drives the reset line without needing an external pull-up resistor, which saves one component per rail on the BOM. ## 120ms reset timeout — long enough for rail settling, short enough for fast boot That window is long enough for the power supply to reach regulation after power-up, and long enough to cover most brown-out recovery events. It is short enough that a microcontroller with a typical 16 MHz crystal will be out of reset and executing code before the user notices any delay. If the system needs a longer delay to sequence multiple rails, this part alone won't provide it — the 120ms is fixed, not adjustable. ## SC-70-5 footprint — the board layout constraint The part comes in a 5-pin SC-70 package (also known as SOT-353). The 0.65mm pin pitch is standard for this class of supervisor, but the small body means the copper pad area under the package is limited — the thermal dissipation is through the pins, not a pad. For most 3.3V rail monitoring applications drawing under 50 µA, the package handles the thermal load without issue. The base product number TPS3801 covers a family of threshold voltage options in the same package, so if the 2.93V threshold is correct for the rail, this exact variant is the one to qualify.","metaTitle":"TPS3801K33DCKR Simple Reset/Power-On Reset, 2.93V Threshold","metaDescription":"Texas Instruments TPS3801K33DCKR simple reset/power-on reset IC with 2.93V threshold, active-low push-pull output, 120ms min timeout, SC-70-5 package.","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":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3801","Voltage - Threshold":"2.93V","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SC-70-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/353ab7aa064810346ed7462973d871e3.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3801K33DCKR/alternatives.json"},"ai":{"faq":[{"question":"Is TPS3801K33DCKR active low reset?","answer":"Yes, the reset output is active low. When the supply voltage drops below the 2.93V threshold, the output goes low and holds the reset state for a minimum of 120ms after the supply returns above the threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3801K33DCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3801K33DCKR 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}}