{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3862IUH-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3862IUH-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3862IUH-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3862IUH-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3862IUH-1#PBF, dual-phase current-mode boost/SEPIC controller, 75kHz-500kHz switching, 96% max duty cycle, 8.5V-36V supply, 24-QFN 5x5, -40°C to 125°C.","salesMarkdown":"## Dual-phase boost/SEPIC controller for high-power density designs The LTC3862IUH-1#PBF from Analog Devices is a current-mode PWM controller designed for boost and SEPIC topologies. It drives two external N-channel MOSFETs in a dual-phase configuration, effectively splitting the output current between two interleaved power stages. This reduces input and output ripple by cancellation and spreads the thermal dissipation across two inductor/MOSFET sets, which is useful when board space or component height limits a single large inductor. Switching frequency is programmable from 75kHz to 500kHz via a single resistor, and the controller can be synchronized to an external clock through the Clock Sync pin. The 96% maximum duty cycle supports high step-up ratios — useful when generating a 48V rail from a 12V input, for example — without the controller skipping pulses at high conversion ratios. ## Control features and output configuration Control features include Enable, Frequency Control, Phase Control, and Soft Start. The Phase Control pin sets the phase shift between the two output channels. The output configuration is Positive, with a Transistor Driver output type — meaning the controller drives external N-channel MOSFETs rather than integrating the switches. This gives the designer flexibility to select MOSFETs matched to the specific input voltage, output power, and switching frequency of the application. Synchronous rectification is not supported (Synchronous Rectifier: No), so the design uses Schottky diodes for the output rectifier stage. This is typical for boost and SEPIC controllers in this power class, where the efficiency gain from synchronous rectification is often offset by the added complexity and cost. ## Package and mounting considerations The shipping medium is Tube, so incoming inspection should account for tube-to-tube variations in lead coplanarity. ## Lifecycle and sourcing reality The LTC3862IUH-1#PBF carries an Active product status with ROHS3 compliance.","metaTitle":"LTC3862IUH-1#PBF Boost/SEPIC Controller, 75-500kHz, 24-QFN","metaDescription":"LTC3862IUH-1#PBF is a dual-phase boost/SEPIC controller from Analog Devices. 75kHz-500kHz switching, 96% duty cycle, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, SEPIC","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"2","Package / Case":"24-WQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Frequency Control, Phase Control, Soft Start","Duty Cycle (Max)":"96%","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"75kHz ~ 500kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"24-QFN (5x5)","Voltage - Supply (Vcc/Vdd)":"8.5V ~ 36V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.20000","currency":"USD"},{"qty":10,"price":"$10.11900","currency":"USD"},{"qty":25,"price":"$9.64800","currency":"USD"},{"qty":100,"price":"$8.37740","currency":"USD"},{"qty":250,"price":"$8.00088","currency":"USD"},{"qty":500,"price":"$7.29492","currency":"USD"},{"qty":1000,"price":"$6.66000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/38621fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LTC3862IUH-1#PBF available via RFQ confirmation?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a real-time stock check and price."},{"question":"Can LTC3862IUH-1#PBF be used in a SEPIC converter design?","answer":"Yes. The controller supports both boost and SEPIC topologies. The dual-phase architecture is particularly useful in SEPIC designs where input and output ripple cancellation reduces the size of the coupling capacitor and output filter."},{"question":"What are the alternatives or cross references for LTC3862IUH-1#PBF?","answer":"The closest functional peer is the LTC3862HUH#PBF, which shares the same dual-phase boost/SEPIC topology and 96% duty cycle but is rated for a higher junction temperature of 150°C. The LTC3862HUH#PBF is a drop-in alternative if extended temperature range is needed. For a step-down (buck) controller with synchronous rectification, the LTC3869IGN-2#PBF is a different topology and not a direct cross."},{"question":"What is the lead time for LTC3862IUH-1#PBF from major distributors?","answer":"Lead time varies by distributor and current factory backlog. Submit an RFQ for a confirmed lead-time quote — typical lead times for active Analog Devices controllers range from a few weeks to stock availability through independent channels."},{"question":"What is LTC3862IUH-1#PBF's listed function?","answer":"The listed function is Step-Up, Step-Up/Step-Down, covering boost and SEPIC topologies. It is a non-isolated controller — for isolated designs, consider a flyback controller like the LTC3805EDD#PBF."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3862IUH-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/LTC3862IUH-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}}