{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISL6840IUZ","brand":"Renesas Electronics","brandSlug":"renesas","productSlug":"ISL6840IUZ","canonicalUrl":"https://icboms.com/renesas/ISL6840IUZ","factsUrl":"https://icboms.com/api/mcp/products/ISL6840IUZ","rawCanonicalId":null},"summary":{"shortDescription":"Renesas Electronics ISL6840IUZ PWM boost/flyback controller, 1-output, up to 2 MHz switching, 96% duty cycle, 8-MSOP package, tube.","salesMarkdown":"## Topology flexibility and switching frequency ceiling The ISL6840IUZ is a current-mode PWM controller supporting boost and flyback topologies, with a single transistor-driver output and synchronous rectifier capability. The 96% maximum duty cycle allows high step-up ratios in boost converters without pulse-skipping at the upper end of the conversion range. Switching frequency reaches up to 2 MHz, which shrinks the magnetic component footprint but raises gate-drive losses in the external MOSFET. The trade-off between inductor size and efficiency is set by the chosen operating point, not the controller itself. The Vcc bias range is 7.5 V to 14 V — this powers the internal circuitry and gate drive, not the power stage. The controller's own consumption must be budgeted from this rail; the output stage drives an external MOSFET gate. Operating temperature spans -40°C to 105°C ambient. At the high end, self-heating from the gate-drive current adds to the junction temperature; the 8-MSOP package's thermal impedance (junction-to-ambient, ~150°C/W typical for this footprint) sets the practical dissipation ceiling.","metaTitle":"Renesas ISL6840IUZ Boost/Flyback Controller, 8-MSOP","metaDescription":"ISL6840IUZ boost/flyback PWM controller, up to 2 MHz switching, 96% duty cycle, -40 to 105°C. Active, ROHS3. Sourced to order.","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, Flyback","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Frequency Control","Duty Cycle (Max)":"96%","Number of Outputs":"1","Output Configuration":"Positive, Isolation Capable","Frequency - Switching":"Up to 2MHz","Operating Temperature":"-40°C ~ 105°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"8-MSOP","Voltage - Supply (Vcc/Vdd)":"7.5V ~ 14V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.43000","currency":"USD"},{"qty":10,"price":"$3.07800","currency":"USD"},{"qty":25,"price":"$2.90960","currency":"USD"},{"qty":100,"price":"$2.52170","currency":"USD"},{"qty":250,"price":"$2.39240","currency":"USD"},{"qty":500,"price":"$2.14672","currency":"USD"},{"qty":1000,"price":"$2.03740","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f4628f6cad7fdd0eb81a34d4d340b331.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/renesas/ISL6840IUZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/renesas/ISL6840IUZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}