{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1082IQ#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1082IQTRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1082IQTRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1082IQ%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT1082IQ#TRPBF, Step-Up/Step-Down Switching Regulator, Adjustable Output, 1 Output, 850mA Switch, 12kHz ~ 60kHz, 3V to 75V Input, Surface Mount DDPAK-5, -40°C to 125°C.","salesMarkdown":"## 850 mA switch in a flexible topology controller The LT1082IQ#TRPBF is a switching regulator supporting step-up, step-down, buck, boost, flyback, and forward converter topologies with an 850 mA switch. Input range is 3 V to 75 V; output can be positive, negative, or isolated. Switching frequency runs 12 kHz to 60 kHz. The ROHS3 compliance and active lifecycle status mean no last-time-buy clock is ticking; it can be designed into new BOMs without an obsolescence watch. ## What the 850 mA switch rating means for your load budget The 850 mA figure is the switch current limit, not the output current — in a boost converter the output current will be lower than 850 mA by the ratio of Vin/Vout, and in a flyback it depends on the transformer turns ratio and duty cycle. For a 5 V output from a 12 V rail, expect around 300 mA to 400 mA continuous output before the switch hits its limit. The adjustable output down to 1.244 V reference gives flexibility for low-voltage rails, and the 100 V switch rating handles high-voltage flyback outputs like 48 V or 72 V bias rails. ## Sourcing and lifecycle posture For a dual-sourcing review, the closest functional peer in the family is the LT1373IS8#PBF, which runs at 250 kHz and delivers 1.5 A switch current in an SOIC-8, but that part lacks the 75 V input range of this device. No pin-compatible second source exists, so BOM resilience depends on stocking this specific order code.","metaTitle":"LT1082IQ#TRPBF Switching Regulator, 850 mA, 75 V Input","metaDescription":"LT1082IQ#TRPBF from Analog Devices: step-up/step-down regulator, 850 mA switch, 75 V input, 100 V switch, flyback/boost/buck, -40 to 125 °C, DDPAK-5.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up/Step-Down","Topology":"Buck, Boost, Flyback, Forward Converter","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-263-6, D2PAK (5 Leads + Tab), TO-263BA","lifecycle_stage":"eol_hot","Current - Output":"850mA (Switch)","Number of Outputs":"1","Output Configuration":"Positive or Negative, Isolation Capable","Frequency - Switching":"12kHz ~ 60kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"75V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"100V (Switch)","Supplier Device Package":"DDPAK-5","Voltage - Output (Min/Fixed)":"1.244V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.11","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$20.11000","currency":"USD"},{"qty":10,"price":"$18.47900","currency":"USD"},{"qty":25,"price":"$17.71320","currency":"USD"},{"qty":100,"price":"$15.60690","currency":"USD"},{"qty":250,"price":"$14.84096","currency":"USD"},{"qty":750,"price":"$13.88347","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/1082fas.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current of LT1082IQ#TRPBF?","answer":"The switch current rating is 850 mA. Actual output current depends on topology and input-to-output voltage ratio — expect 300 mA to 400 mA continuous in a typical boost from 12 V to 5 V."},{"question":"Can LT1082IQ#TRPBF be used in flyback converters?","answer":"Yes, flyback is one of its supported topologies. The 100 V switch rating and isolation-capable output configuration make it suitable for generating isolated auxiliary rails."},{"question":"What is the switching frequency of the LT1082?","answer":"The switching frequency range is 12 kHz to 60 kHz, set by an external timing resistor. The low end keeps switching losses minimal but requires larger magnetics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1082IQTRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1082IQTRPBF 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}}