{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS3840PL18DBVR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS3840PL18DBVR","canonicalUrl":"https://icboms.com/texas-instruments/TPS3840PL18DBVR","factsUrl":"https://icboms.com/api/mcp/products/TPS3840PL18DBVR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS3840PL18DBVR, Simple Reset/Power-On Reset, Active Low, Push-Pull Output, 1.8V Threshold, 619ms Typical Reset Timeout, SOT-23-5, -40°C to 125°C","salesMarkdown":"## What this reset IC does on your rail The TPS3840PL18DBVR is a single-channel voltage supervisor that asserts a reset signal when the monitored supply drops below 1.8V. It holds the reset output low for 619ms typical after the supply recovers, giving the downstream processor time to stabilize. Housed in a SOT-23-5 package, the 5-pin footprint is a common supervisor layout — the same pad pattern used by the TLV803 series, making it a drop-in candidate for boards already laid out for that family. Texas Instruments lists this part as Active.","metaTitle":"TPS3840PL18DBVR TI Simple Reset/Power-On Reset IC","metaDescription":"TPS3840PL18DBVR from Texas Instruments: Active-low push-pull reset, 1.8V threshold, 619ms timeout, -40°C to 125°C. Active production. Sourced per RFQ.","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":"619ms Typical","Package / Case":"SC-74A, SOT-753","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TPS3840","Voltage - Threshold":"1.8V","Operating Temperature":"-40°C~125°C(TJ)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2100","priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":10,"price":"$1.08500","currency":"USD"},{"qty":25,"price":"$1.03000","currency":"USD"},{"qty":100,"price":"$0.84600","currency":"USD"},{"qty":250,"price":"$0.79080","currency":"USD"},{"qty":500,"price":"$0.69886","currency":"USD"},{"qty":1000,"price":"$0.55173","currency":"USD"},{"qty":3000,"price":"$0.52050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5c43cdc78d6ce4876119969a2f71b26e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS3840PL18DBVR/alternatives.json"},"ai":{"faq":[{"question":"When sourcing TPS3840PL18DBVR, what is the closest functional second-source — TLV803EA29VDBZR?","answer":"The TLV803EA29VDBZR is a similar simple reset IC but with an open-drain output (not push-pull) and a 2.9V threshold with a 130ms minimum timeout. The TPS3840PL18DBVR has a push-pull output, 1.8V threshold, and a 619ms typical timeout. They are not direct pin-for-pin replacements; the output type and timeout differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS3840PL18DBVR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS3840PL18DBVR 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}}