{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM25085ASDE/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM25085ASDE-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM25085ASDE-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM25085ASDE%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM25085ASDE/NOPB step-down buck controller, 4.5-42V input, up to 1MHz switching, 8-WSON (3x3), active, ROHS3 compliant.","salesMarkdown":"## Buck controller with wide input and high temp ceiling The LM25085ASDE/NOPB is a non-synchronous step-down (buck) controller from Texas Instruments, switching at up to 1 MHz and accepting a 4.5 V to 42 V supply rail. It drives an external transistor (no synchronous rectifier), so the bill-of-materials includes a Schottky catch diode. The 100% duty-cycle capability means the output can run at the input voltage minus the drop across the external pass element — useful in battery-powered systems where the input sags close to the setpoint. The small 3x3 mm footprint leaves room for the catch diode and inductor on a compact layout. No clock sync input means the switching frequency is set by a single resistor — a clean, low-component-count design for point-of-load regulators.","metaTitle":"LM25085ASDE/NOPB Buck Controller, 42V, 1MHz, Active","metaDescription":"Texas Instruments LM25085ASDE/NOPB step-down buck controller, 4.5-42V input, up to 1MHz switching, -40 to 125°C. Active, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Frequency Control","Duty Cycle (Max)":"100%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"Up to 1MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"8-WSON (3x3)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 42V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.72","priceTiers":[{"qty":1,"price":"$2.72000","currency":"USD"},{"qty":10,"price":"$2.44700","currency":"USD"},{"qty":25,"price":"$2.30800","currency":"USD"},{"qty":100,"price":"$1.96650","currency":"USD"},{"qty":250,"price":"$1.84652","currency":"USD"},{"qty":500,"price":"$1.61570","currency":"USD"},{"qty":1250,"price":"$1.33873","currency":"USD"},{"qty":2500,"price":"$1.30650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ed6a633b735df6fd03b233db3633cd8a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM25085ASDE%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Will LM25085ASDE/NOPB drop into a board designed for LM25117PMHX/NOPB?","answer":"Not without a layout change. The LM25117PMHX/NOPB is a synchronous buck controller (includes the low-side FET driver), while the LM25085ASDE/NOPB is non-synchronous and requires an external catch diode. Both come in a similar 8-WSON (3x3) package, but the pin functions differ — the LM25117 has a separate bootstrap pin and a low-side gate drive that the LM25085 lacks. A direct swap without rewiring the surrounding components will not work."},{"question":"What is the switching frequency range of LM25085ASDE/NOPB?","answer":"The controller switches at up to 1 MHz, set by a single external resistor on the frequency-control pin. No clock-sync input is provided."},{"question":"What compliance documentation does Texas Instruments provide for LM25085ASDE/NOPB?","answer":"The part is ROHS3 compliant per the lifecycle record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM25085ASDE-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM25085ASDE-NOPB 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}}