{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4271ESA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4271ESAT","canonicalUrl":"https://icboms.com/analog-devices/MAX4271ESAT","factsUrl":"https://icboms.com/api/mcp/products/MAX4271ESA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices DualSpeed/BiLevel™ series MAX4271ESA+T Hot Swap Controller, 2.7V to 13.2V supply, 600 µA supply current, 8-SOIC package, Tape & Reel.","salesMarkdown":"## Board-level hot-swap protection with programmable fault handling The MAX4271ESA+T is a single-channel hot swap controller from Analog Devices' DualSpeed/BiLevel™ series, designed to manage inrush current and protect downstream circuitry during board insertion into a live backplane. Because the part has no internal switch, the designer selects an external N-channel MOSFET that matches the load current profile. The controller then drives the gate to regulate the slew rate, preventing the voltage droop and glitching that occur when a capacitive load hits a live rail. ## Protection feature set and programmability The controller integrates undervoltage lockout (UVLO) and overvoltage protection (OVP) as fixed features, plus a latched fault output that signals when a fault condition persists. The programmable set includes a circuit breaker threshold, current limit level, and fault timeout — all set with external resistors and a capacitor, so the same PCB layout can be tuned for different load cards by changing passive values. ## Lifecycle and compliance for BOM planning For a BOM line that requires a hot-swap controller in the 2.7-13.2 V range, this part is a straightforward fit — the external MOSFET gives flexibility on load current, and the programmable fault timers let the same controller serve multiple board variants without a PCB spin.","metaTitle":"MAX4271ESA+T Hot Swap Controller, 2.7-13.2V, SOIC-8","metaDescription":"Analog Devices MAX4271ESA+T hot swap controller, 2.7V to 13.2V supply, 600 µA quiescent, programmable current limit and circuit breaker. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"DualSpeed/BiLevel™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Hot Swap Controller","Series":"DualSpeed/BiLevel™","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Latched Fault, OVP, UVLO","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"600 µA","Voltage - Supply":"2.7V ~ 13.2V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Circuit Breaker, Current Limit, Fault Timeout","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.81","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.81000","currency":"USD"},{"qty":10,"price":"$7.05700","currency":"USD"},{"qty":25,"price":"$6.72920","currency":"USD"},{"qty":100,"price":"$5.84280","currency":"USD"},{"qty":250,"price":"$5.58024","currency":"USD"},{"qty":500,"price":"$5.08788","currency":"USD"},{"qty":1000,"price":"$4.43138","currency":"USD"},{"qty":2500,"price":"$4.26725","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/3f6db501a8c435192c8643bc0e1320d5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the MAX4271ESA+T include an internal MOSFET?","answer":"No, it has no internal switch. An external N-channel MOSFET must be selected based on the load current and gate drive requirements. This gives the designer control over the pass element's Rds(on) and thermal performance."},{"question":"What compliance documentation does Analog Devices provide for the MAX4271ESA+T?","answer":"The part is ROHS3 compliant. Analog Devices provides a RoHS certificate and material declaration. No UL or IEC certification is listed in the product record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4271ESAT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4271ESAT 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}}