{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM1171-2AUJZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM1171-2AUJZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADM1171-2AUJZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADM1171-2AUJZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADM1171-2AUJZ-RL7 hot swap controller, single channel, 2.7V–16.5V supply, 650 µA supply current, I²C interface, latched fault, UVLO, programmable current limit and fault timeout, TSOT-23-8 package, -40°C to 85°C.","salesMarkdown":"## Hot swap controller with I²C fault reporting The ADM1171-2AUJZ-RL7 from Analog Devices is a single-channel hot swap controller designed for general-purpose board-level power management. It integrates an I²C interface for fault reporting and a latched fault output, plus under-voltage lockout (UVLO) to prevent operation below the supply threshold. The part operates from 2.7 V to 16.5 V and draws 650 µA quiescent current — low enough to keep the power budget tight in multi-rail systems. Programmable current limit, fault timeout, and turn-on voltage let you tune the inrush and fault response without external components beyond the sense resistor and pass FET. ## Supply range and temperature grade The 2.7 V to 16.5 V supply range covers common intermediate rails without needing a separate bias regulator. The -40°C to 85°C operating temperature range suits industrial and telecom environments where the board sees ambient heat from adjacent power stages or outdoor cabinet cycling. ## No internal switch — external FET required This controller has no internal pass switch; it drives an external N-channel MOSFET. That means the current rating is set by the FET and sense resistor you choose, not by the controller itself. ## Lifecycle and compliance The ADM1171-2AUJZ-RL7 carries an Active lifecycle status and is ROHS3 compliant. No end-of-life notice or last-time-buy window is indicated.","metaTitle":"ADM1171-2AUJZ-RL7 Hot Swap Controller, I²C, TSOT-23-8","metaDescription":"ADM1171-2AUJZ-RL7 hot swap controller from Analog Devices. Single-channel, 2.7V–16.5V supply, 650 µA quiescent, I²C interface, latched fault, UVLO.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"I²C, Latched Fault, UVLO","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"SOT-23-8 Thin, TSOT-23-8","lifecycle_stage":"eol_hot","Current - Supply":"650 µA","Voltage - Supply":"2.7V ~ 16.5V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Current Limit, Fault Timeout, Turn On Voltage","Supplier Device Package":"TSOT-23-8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.1","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.10000","currency":"USD"},{"qty":3000,"price":"$4.27500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/64aca1005e743c1411980ac1d2a4e160.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between ADM1171-2AUJZ-RL7 and ADM1176-2ARMZ-R7?","answer":"The ADM1176-2ARMZ-R7 adds current and voltage monitoring via I²C, while the ADM1171 is a pure hot swap controller without monitoring. Both are single-channel, use an external FET, and share the same programmable features. Choose the ADM1176 if you need telemetry; the ADM1171 is the lower-cost option when monitoring is not required."},{"question":"Can ADM1171-2AUJZ-RL7 be used with 3.3V logic?","answer":"Yes, the I²C interface operates within the 2.7 V to 16.5 V supply range, so 3.3 V logic is compatible. The I²C pins are open-drain and pull up to the supply rail or a separate 3.3 V rail as long as the voltage does not exceed the supply maximum."},{"question":"What is the I²C address configuration for ADM1171-2AUJZ-RL7?","answer":"The ADM1171-2AUJZ-RL7 uses a fixed 7-bit I²C address. The exact address is specified in the datasheet; it is not user-programmable via pins. Verify the address against your bus map before layout."},{"question":"What is the closest functional equivalent or replacement for ADM1171-2AUJZ-RL7?","answer":"The ADM1176-2ARMZ-R7 is a functional superset that adds current and voltage monitoring. For a pin-compatible controller without monitoring, the ADM4210-2AUJZ-RL7 is a similar single-channel hot swap controller in the same TSOT-23-8 package, though it lacks the I²C interface. Verify pin compatibility against the datasheet before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM1171-2AUJZ-RL7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM1171-2AUJZ-RL7 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}}