{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC1728ES5-5#TRMPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC1728ES5-5TRMPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC1728ES5-5TRMPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC1728ES5-5%23TRMPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC1728ES5-5#TRMPBF, Multi-Voltage Supervisor, 3-channel, thresholds 3.086V/4.675V/Adj, active-low open-drain output, 140ms min reset timeout, TSOT-23-5, -40°C to 85°C.","salesMarkdown":"## Multi-Voltage Supervisor for Three-Rail Sequencing The Analog Devices LTC1728ES5-5#TRMPBF is a three-channel multi-voltage supervisor that monitors up to three supply rails simultaneously, asserting a common active-low reset when any monitored voltage falls below its threshold. It is designed for systems requiring reliable power-up sequencing and brown-out detection across multiple voltage domains, such as mixed-signal boards with 5V, 3.3V, and a core logic rail. Housed in a TSOT-23-5 package, the device occupies minimal board area and is specified over the industrial temperature range of -40°C to 85°C, making it suitable for telecom infrastructure, industrial controllers, and embedded computing platforms. ## Output Type and Interface Considerations The open-drain, active-low output requires an external pull-up resistor to the monitored rail or to the system's logic supply. This topology allows the reset signal to be wire-ORed with other reset sources, and the output remains valid even if the monitored supply drops to zero, because the pull-up is referenced to a separate rail. The 140ms minimum reset timeout ensures that the system clock and PLLs have time to settle before the processor is released from reset. ## Lifecycle and Compliance It is ROHS3 compliant, meeting the latest restriction-of-hazardous-substances directive. For production BOMs, this part presents no imminent obsolescence risk, though as with any active semiconductor, periodic PCN monitoring is recommended.","metaTitle":"LTC1728ES5-5#TRMPBF Multi-Voltage Supervisor","metaDescription":"LTC1728ES5-5#TRMPBF multi-voltage supervisor monitors three rails: 3.086V, 4.675V, and adjustable. Active-low open-drain output, 140ms reset timeout.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Multi-Voltage Supervisor","Reset":"Active Low","Output":"Open Drain or Open Collector","Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Reset Timeout":"140ms Minimum","Package / Case":"SOT-23-5 Thin, TSOT-23-5","lifecycle_stage":"eol_hot","Voltage - Threshold":"3.086V, 4.675V, Adj","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"TSOT-23-5","Number of Voltages Monitored":"3"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.51","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.51000","currency":"USD"},{"qty":10,"price":"$4.95200","currency":"USD"},{"qty":25,"price":"$4.68120","currency":"USD"},{"qty":100,"price":"$4.05720","currency":"USD"},{"qty":250,"price":"$3.84912","currency":"USD"},{"qty":500,"price":"$3.45380","currency":"USD"},{"qty":1000,"price":"$2.91284","currency":"USD"},{"qty":2500,"price":"$2.76720","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4aa99f2fcd42e9b91e09b4e5363d59e1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output type of LTC1728ES5-5#TRMPBF?","answer":"The output is open-drain, active-low, requiring an external pull-up resistor to the logic supply rail."},{"question":"Can LTC1728ES5-5#TRMPBF be used in a 3.3V system?","answer":"Yes, the 3.086V threshold is designed to monitor a 3.3V rail, and the adjustable input can monitor additional rails down to the reference voltage. The device operates from the monitored rails themselves, so no separate supply is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC1728ES5-5TRMPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC1728ES5-5TRMPBF 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}}