{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4215CUFD#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4215CUFDPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4215CUFDPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4215CUFD%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology LTC4215CUFD#PBF Hot Swap Controller, Monitor, I²C, OVP, UVLO, 1-channel, 2.9V ~ 15V supply, 3 mA supply, Surface Mount 24-WFQFN Exposed Pad, 0°C ~ 70°C.","salesMarkdown":"## Hot swap controller with I²C telemetry — what it does on the board What sets this controller apart from a basic hot swap clamp is the I²C interface. You get real-time readback of current, voltage, and fault status over the bus, plus programmable settings for current limit, fault timeout, auto-retry, and latched fault behaviour. Overvoltage and undervoltage lockout thresholds are also configurable through the I²C port or external resistor dividers. ## I²C interface — what you can read and set The I²C bus on the LTC4215CUFD#PBF gives you access to an ADC that measures the voltage across the sense resistor and the supply rail. You can read the current draw of your board, the input voltage, and the status of the fault latch. On the control side, you set the current limit threshold, the overvoltage and undervoltage trip points, and the behaviour after a fault — whether it latches off, retries automatically, or times out and tries again. This telemetry is useful for system health monitoring — a BMC or service processor can poll the LTC4215 to detect a board drawing excessive current before the breaker trips, or log the power-on surge profile during qualification. The I²C address is set via pin strapping, so multiple controllers can share the same bus in a multi-slot chassis. ## Package and layout — 24-QFN with exposed pad The part comes in a 24-lead QFN measuring 4x5 mm with an exposed pad on the bottom. That pad must be soldered to the PCB ground plane for thermal relief — the controller itself dissipates little power (the 3 mA supply current is mostly the I²C interface and internal bias), but the pad also provides a low-inductance return path for the gate drive and sense circuitry. Surface-mount only, no through-hole option. The shipping medium is Tube. The tape-and-reel variant is LTC4215IUFD#TRPBF — same die, same footprint, different packaging. ## Lifecycle and sourcing — active, no LTB risk The LTC4215CUFD#PBF has Active product status and is ROHS3 compliant. No last-time-buy or end-of-life notice exists for this order code.","metaTitle":"LTC4215CUFD#PBF Hot Swap Controller, I²C Monitor, 2.9V-15V","metaDescription":"LTC4215CUFD#PBF hot swap controller with I²C monitoring, OVP, UVLO. 2.9V-15V supply, 3 mA supply current, 0°C to 70°C. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller, Monitor","Package":"Tube","Features":"I²C, OVP, UVLO","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"24-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Supply":"3 mA","Voltage - Supply":"2.9V ~ 15V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"0°C ~ 70°C","Programmable Features":"Auto Retry, Current Limit, Fault Timeout, Latched Fault","Supplier Device Package":"24-QFN (4x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.91","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.91000","currency":"USD"},{"qty":10,"price":"$10.75700","currency":"USD"},{"qty":25,"price":"$10.25640","currency":"USD"},{"qty":100,"price":"$8.90570","currency":"USD"},{"qty":250,"price":"$8.50544","currency":"USD"},{"qty":500,"price":"$7.75496","currency":"USD"},{"qty":1000,"price":"$7.08000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/5ac8931c840eeaddc3d23cf1c15cbd19.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LTC4215CUFD#PBF have an I2C interface?","answer":"Yes, the LTC4215CUFD#PBF includes an I²C interface for reading current, voltage, and fault status, and for programming current limit, OVP/UVLO thresholds, and fault behaviour."},{"question":"When sourcing LTC4215CUFD#PBF, what's the closest functional second-source?","answer":"The closest functional alternate is the LTC4215IUFD-1#PBF. It shares the same I²C interface, OVP/UVLO features, and 24-QFN footprint, but extends the temperature range to -40°C to 85°C. The LTC4218CDHC-12#PBF is a different part — it targets ATCA/MicroTCA applications and lacks the I²C interface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4215CUFDPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4215CUFDPBF 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}}