{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TLV803EC43DBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TLV803EC43DBZR","canonicalUrl":"https://icboms.com/texas-instruments/TLV803EC43DBZR","factsUrl":"https://icboms.com/api/mcp/products/TLV803EC43DBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TLV803EC43DBZR, Simple Reset/Power-On Reset, Active Low, Open Drain, 4.38V threshold, 6.5ms timeout, SOT-23-3, -40 to 125°C.","salesMarkdown":"The Texas Instruments TLV803EC43DBZR is a simple reset/power-on reset supervisor in a SOT-23-3 package. It monitors a single 4.38 V rail and asserts an active-low, open-drain reset output when the supply drops below threshold. The reset timeout is a minimum of 6.5 ms, giving the downstream processor time to stabilize after power-up. Intended for use in microcontroller-based systems, industrial controllers, and portable equipment where a clean power-on reset is critical. ## SOT-23-3 — rework-friendly footprint The SOT-23-3 package is small but hand-reworkable with a hot-air station. Three pads, no hidden leads — lift the part, not the pad. The open-drain output means you need a pull-up resistor to the logic supply; the supervisor itself doesn't source current, so the pull-up value sets the rise time. Mount it close to the monitored rail's bulk capacitor to avoid noise-induced false resets. ## Active lifecycle — no LTB risk For BOM freeze planning, no PCN watch is needed on this line today.","metaTitle":"TLV803EC43DBZR Simple Reset/Power-On Reset, 4.38V Threshold","metaDescription":"TI TLV803EC43DBZR voltage supervisor: active-low, open-drain output, 4.38V threshold, 6.5ms reset timeout, SOT-23-3, -40 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Simple Reset/Power-On Reset","Reset":"Active Low","Output":"Open Drain or Open Collector","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"6.5ms Minimum","Package / Case":"TO-236-3, SC-59, SOT-23-3","lifecycle_stage":"eol_hot","Voltage - Threshold":"4.38V","Operating Temperature":"-40°C ~ 125°C (TJ)","Supplier Device Package":"SOT-23-3","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.54","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.54000","currency":"USD"},{"qty":10,"price":"$0.45800","currency":"USD"},{"qty":25,"price":"$0.42760","currency":"USD"},{"qty":100,"price":"$0.34220","currency":"USD"},{"qty":250,"price":"$0.31776","currency":"USD"},{"qty":500,"price":"$0.26886","currency":"USD"},{"qty":1000,"price":"$0.20776","currency":"USD"},{"qty":3000,"price":"$0.17064","currency":"USD"},{"qty":6000,"price":"$0.15963","currency":"USD"},{"qty":15000,"price":"$0.14862","currency":"USD"},{"qty":30000,"price":"$0.14092","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1f1b762b05b3af6fea5fe0e0bb2a5651.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does TLV803EC43DBZR come in?","answer":"It comes in a SOT-23-3 surface-mount package (also designated TO-236-3 / SC-59)."},{"question":"What is the reset output type for TLV803EC43DBZR?","answer":"The reset output is active-low, open-drain. You need an external pull-up resistor to the logic supply."},{"question":"What are direct alternatives to TLV803EC43DBZR?","answer":"The TLV803ED29DBZR (2.93 V threshold, 33 ms timeout) and TLV803EA29VDBZR (2.93 V, 130 ms timeout) are same-family parts with different thresholds and timeouts. Choose based on your supply voltage and required reset hold time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TLV803EC43DBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TLV803EC43DBZR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}