{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC1643AL-1IGN#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC1643AL-1IGNPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC1643AL-1IGNPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC1643AL-1IGN%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology (Analog Devices) LTC1643AL-1IGN#PBF Hot Swap Controller, 4-channel, 200mA/500mA outputs, 3.3V/5V/±12V supply, 16-SSOP, -40°C to 85°C, Tube.","salesMarkdown":"## CompactPCI hot-swap sequencing — four rails, one controller Programmable current limit, fault timeout, and slew rate give the board designer control over the turn-on profile. The controller latches off on fault and includes thermal limit and undervoltage lockout (UVLO) protection. The industrial temperature range (-40°C to 85°C) suits it for outdoor telecom cabinets, factory-floor CompactPCI chassis, and other environments where the backplane sees ambient temperature swings beyond commercial-grade limits. ## Industrial temp vs commercial — the -1IGN suffix matters The closest functional peer is the LTC1643AL-1CGN#PBF, which shares the same 4-channel architecture, internal switches, programmable features, and 200mA/500mA output split. The deciding difference is the temperature grade: the -1CGN variant is specified for 0°C to 70°C (commercial), while this -1IGN part is rated for -40°C to 85°C (industrial). For a CompactPCI system deployed in a temperature-controlled server room, the commercial part fits. For a chassis in an unventilated enclosure, a factory floor, or an outdoor shelter, the -1IGN is the correct ordering code. ## Active status — no last-time-buy pressure The LTC1643AL-1IGN#PBF carries an Active lifecycle status with ROHS3 compliance. There is no NRND notice or last-time-buy window on this part.","metaTitle":"LTC1643AL-1IGN#PBF Hot Swap Controller, 4-Channel","metaDescription":"LTC1643AL-1IGN#PBF Hot Swap Controller for CompactPCI. 4 channels, 200mA/500mA outputs, 3.3V/5V/±12V supply. Industrial temp range. 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, Thermal Limit, UVLO","Applications":"CompactPCI™","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3.3V, 5V, ±12V","Internal Switch(s)":"Both","Number of Channels":"4","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Current Limit, Fault Timeout, Slew Rate","Current - Output (Max)":"200mA, 500mA","Supplier Device Package":"16-SSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.87","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$12.87000","currency":"USD"},{"qty":10,"price":"$11.82500","currency":"USD"},{"qty":25,"price":"$11.33440","currency":"USD"},{"qty":100,"price":"$9.98670","currency":"USD"},{"qty":250,"price":"$9.49656","currency":"USD"},{"qty":500,"price":"$8.88386","currency":"USD"},{"qty":1000,"price":"$8.67000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/1643afb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LTC1643AL-1IGN#PBF be used in a 5V only PCI application?","answer":"Yes. The LTC1643AL-1IGN#PBF supports 3.3V, 5V, and ±12V rails independently. In a 5V-only PCI system, connect only the 5V-rated output channel and leave the other channels unconnected. The unused channels remain off and do not trigger faults."},{"question":"Can LTC1643AL-1IGN#PBF be used in a 3.3V only PCI system?","answer":"Yes. The same independent-channel architecture applies. Use only the 3.3V-rated output channel for a 3.3V-only PCI slot. The 5V and ±12V channels are simply left unconnected and do not interfere."},{"question":"What is the difference between LTC1643AL-1IGN#PBF and LTC1643AL-IGN#PBF?","answer":"The difference is the temperature grade. The LTC1643AL-1IGN#PBF is rated for -40°C to 85°C (industrial), while the LTC1643AL-IGN#PBF is the commercial-grade variant rated for 0°C to 70°C. All other specifications — 4-channel architecture, 200mA/500mA outputs, programmable features, and 16-SSOP package — are identical between the two ordering codes."},{"question":"What is LTC1643AL-1IGN#PBF's listed type and package?","answer":"The LTC1643AL-1IGN#PBF is a Hot Swap Controller supplied in a Tube. The device is surface-mount in a 16-SSOP (0.154\", 3.90mm Width) package with a 16-SSOP supplier device package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC1643AL-1IGNPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC1643AL-1IGNPBF 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}}