{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4253IGN#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4253IGNPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4253IGNPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4253IGN%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4253IGN#PBF, Hot Swap Controller, Sequencer, -48V, 1-channel, Latched Fault, 16-SSOP (0.154\", 3.90mm Width), Surface Mount, -40°C to 85°C.","salesMarkdown":"## What this -48V hot swap controller does on the board The Analog Devices LTC4253IGN#PBF is a single-channel hot swap controller and sequencer designed for -48V power distribution, commonly found in telecom central-office equipment, base stations, and -48V backplane systems. It integrates programmable circuit breaker, current limit, fault timeout, overvoltage protection (OVP), and undervoltage lockout (UVLO) — all adjustable with external resistors and capacitors, so you set the protection thresholds to match the load and supply tolerance. The part does not include an internal MOSFET; you pair it with an external N-channel pass transistor sized for your load current and thermal budget. ## Package and mounting Housed in a 16-SSOP with a 3.90 mm body width and 0.154\" pitch, this is a standard surface-mount package that reflows well and is hand-reworkable with hot air. The lead pitch is fine enough to need flux and a clean tip, but not so fine that you need an X-ray to check the joints. No exposed pad, so the thermal path is through the leads; keep the copper pour under the part connected to the -48V plane for heat spreading. ## Temperature range and environment Rated for -40°C to 85°C operating temperature, this covers indoor telecom racks, outdoor cabinets with climate control, and most industrial -48V plants. Not rated for under-hood automotive or downhole environments, but it is a solid fit for central-office and base-station line cards where the ambient stays within that band.","metaTitle":"LTC4253IGN#PBF Hot Swap Controller, Sequencer, -48V, 16-SSOP","metaDescription":"LTC4253IGN#PBF -48V hot swap controller with sequencer from Analog Devices. Active lifecycle, 16-SSOP package, programmable UVLO/OVP/current limit.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Hot Swap Controller, Sequencer","Package":"Bulk","Features":"Latched Fault","Applications":"-48V","Mounting Type":"Surface Mount","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Supply":"800 µA","Voltage - Supply":"-48V","Internal Switch(s)":"No","Number of Channels":"1","Operating Temperature":"-40°C ~ 85°C","Programmable Features":"Circuit Breaker, Current Limit, Fault Timeout, OVP, UVLO","Supplier Device Package":"16-SSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.67","stockQuantity":0,"priceTiers":[{"qty":53,"price":"$5.67000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/dd91d35fc418c6541acbc5d99b9a03ee.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LTC4253IGN#PBF work with -48V systems?","answer":"Yes, the LTC4253IGN#PBF is specifically designed for -48V applications, as listed in its application field. Its supply voltage rating is -48V, making it a direct fit for telecom and networking backplanes that run on a -48V bus."},{"question":"What are the alternatives to LTC4253IGN#PBF?","answer":"The closest functional alternative is the LTC4253BIGN#PBF, which shares the same feature set (latched fault, programmable UVLO/OVP/current limit/fault timeout) and package. The main difference is packaging: the LTC4253IGN#PBF ships in bulk, while the LTC4253BIGN#PBF ships in tube. For a slightly different feature set (no circuit breaker), the LTC4252BIMS8-1#PBF is another -48V hot swap controller in an 8-lead MSOP package."},{"question":"Does LTC4253IGN#PBF require an external MOSFET?","answer":"Yes, the LTC4253IGN#PBF does not include an internal switch. You must pair it with an external N-channel MOSFET sized for your load current and thermal dissipation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4253IGNPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4253IGNPBF 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}}