{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4231IMS-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4231IMS-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4231IMS-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4231IMS-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4231IMS-1#PBF, Hot Swap Controller, General Purpose, 1 Channel, 2.7V to 36V Supply, 4µA Supply Current, Latched Fault, 12-MSOP, -40°C to 85°C.","salesMarkdown":"## Hot swap controller with latched fault — what it does and where it fits The LTC4231IMS-1#PBF is a single-channel hot swap controller from Analog Devices that manages board-level inrush current and protects against overcurrent, overvoltage, and undervoltage faults on supply rails from 2.7 V to 36 V. It drives an external N-channel MOSFET to soft-start the load, limiting the surge into bulk capacitance during insertion. The controller draws only 4 µA of supply current, making it suitable for always-on or battery-backed backplane slots where every microamp matters. Programmable features — circuit breaker threshold, current limit, fault timeout, overvoltage protection (OVP), undervoltage lockout (UVLO), and slew rate — let the designer tailor the protection envelope to the specific load capacitance and rail tolerance without changing the bill of materials. ## Active lifecycle and ROHS compliance — no obsolescence risk LTC4231IMS-1#PBF carries an Active product status with ROHS3 compliance. No second-source alternate is required for supply assurance at this stage, though the LTC4231IUD-1#PBF (same function, different package) provides a drop-in alternative if board-space constraints change. ## 12-MSOP package — layout and thermal notes The part is supplied in a 12-lead MSOP (12-MSOP) package, 3.00 mm wide, surface-mount. The MSOP footprint is compact enough for dense backplane cards but still hand-solderable with a fine-tip iron. No internal switch means the external N-channel MOSFET handles all the power dissipation; the controller itself stays cool. The -40°C to 85°C operating range covers most industrial and telecom indoor environments. For extended-temperature applications (up to 125°C), the LTC4231HUD-1#PBF is the high-temp sibling.","metaTitle":"LTC4231IMS-1#PBF Hot Swap Controller, 2.7V-36V, 4µA, 12-MSOP","metaDescription":"LTC4231IMS-1#PBF Analog Devices Hot Swap Controller. 2.7V to 36V supply, 4 µA quiescent, latched fault, programmable UVLO/OVP/current limit. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller","Package":"Tube","Features":"Latched Fault","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"12-TSSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"4 µA","Voltage - Supply":"2.7V ~ 36V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Circuit Breaker, Current Limit, Fault Timeout, OVP, Slew Rate, UVLO","Supplier Device Package":"12-MSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.92","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.92000","currency":"USD"},{"qty":10,"price":"$7.15600","currency":"USD"},{"qty":25,"price":"$6.82320","currency":"USD"},{"qty":100,"price":"$5.92460","currency":"USD"},{"qty":250,"price":"$5.65828","currency":"USD"},{"qty":500,"price":"$5.15902","currency":"USD"},{"qty":1000,"price":"$4.71000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/LTC4231.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LTC4231IMS-1#PBF and LTC4231IMS-2#PBF?","answer":"The -1 suffix uses latched fault (manual reset required after a fault clears); the -2 suffix uses auto-retry (the controller periodically attempts to restart). All other specs — supply range, quiescent current, programmable features, package — are identical."},{"question":"What are the alternative parts for LTC4231IMS-1#PBF?","answer":"The LTC4231IUD-1#PBF is functionally identical in a 12-QFN package. For extended temperature range (-40°C to 125°C), use the LTC4231HUD-1#PBF (also 12-QFN). Both are pin-compatible in function but require a different PCB footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4231IMS-1PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4231IMS-1PBF 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}}