{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6420UK16+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6420UK16T","canonicalUrl":"https://icboms.com/analog-devices/MAX6420UK16T","factsUrl":"https://icboms.com/api/mcp/products/MAX6420UK16%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX6420UK16+T Multi-Voltage Supervisor, 2-channel, Active Low Open Drain Output, 1.575V/Adj Threshold, SOT-23-5, -40°C to +125°C.","salesMarkdown":"## Dual-rail supervisor in a five-pin SOT-23 The MAX6420UK16+T: One channel has a fixed 1.575V threshold — sized for a 1.8V rail — while the second is adjustable via an external resistor divider, letting you set the trip point for a 2.5V, 3.3V, or any other rail the system carries. The open-drain output lets multiple supervisors share a common pull-up and reset line, so a board with separate 1.8V and 3.3V domains can OR their reset signals into one processor input without extra logic. ## Threshold selection and reset timing The fixed threshold of 1.575V monitors a 1.8V rail with typical margin — if the rail droops below 1.575V, the reset asserts. The adjustable channel uses an external resistor divider from the monitored rail to the ADJ pin; the internal reference is 0.6V, so the trip point is set by the ratio (R1+R2)/R2 * 0.6V. Reset timeout is adjustable/selectable via an external capacitor on the CT pin. Without a capacitor the timeout defaults to a minimum delay; adding capacitance extends the reset pulse width to let the rails stabilize before the processor starts. This is the same approach used in the MAX6421/MAX6422 family — the pinout and programming method carry across. ## Temperature grade and board integration No MSL rating is listed in the spec, but SOT-23-5 packages typically carry MSL-1 (unlimited floor life) unless otherwise noted on the reel label. ## Active lifecycle — sourcing posture The adjustable second channel gives flexibility across multiple board variants without changing the IC.","metaTitle":"MAX6420UK16+T Analog Devices Multi-Voltage Supervisor","metaDescription":"MAX6420UK16+T multi-voltage supervisor from Analog Devices monitors 2 rails, 1.575V fixed + adjustable threshold, active-low open-drain reset, -40°C to +125°C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"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":"Adjustable/Selectable","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Voltage - Threshold":"1.575V, Adj","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SOT-23-5","Number of Voltages Monitored":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.21000","currency":"USD"},{"qty":10,"price":"$2.88500","currency":"USD"},{"qty":25,"price":"$2.72720","currency":"USD"},{"qty":100,"price":"$2.36340","currency":"USD"},{"qty":250,"price":"$2.24220","currency":"USD"},{"qty":500,"price":"$2.01192","currency":"USD"},{"qty":1000,"price":"$1.69680","currency":"USD"},{"qty":2500,"price":"$1.61196","currency":"USD"},{"qty":5000,"price":"$1.55136","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX6420UK16+T?","answer":"The MAX6421UK16+T is a pin-compatible sibling with a fixed reset timeout instead of adjustable timing. Both share the same SOT-23-5 footprint, threshold options, and active-low open-drain output — the difference is only in how the reset pulse width is set (capacitor vs fixed internal delay). Check the timeout requirement on your BOM before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6420UK16T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6420UK16T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}