{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3524DM/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3524DM-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3524DM-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3524DM%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3524DM/NOPB, PWM controller for step-up/step-down (buck/boost) topologies, single transistor driver output, 8V to 40V supply, 49% max duty cycle, 0°C to 125°C junction, 16-SOIC surface mount package.","salesMarkdown":"## PWM controller for buck and boost regulation The Texas Instruments LM3524DM/NOPB is a PWM controller IC designed for both step-up (boost) and step-down (buck) switching regulator topologies. It integrates the control logic and a single transistor driver output on a single chip, operating from a supply rail of 8V to 40V. This makes it a fit for a range of non-isolated DC-DC converter designs in industrial and commercial power supplies, where a single controller must handle either topology without a major board respin. ## Supply range and duty cycle — what they mean for your converter The output configuration supports positive or negative rails, which is useful for generating a negative bias supply from a positive input bus, common in op-amp or LCD bias circuits. ## Temperature grade and package fit Rated for a junction temperature range of 0°C to 125°C, this part is specified for commercial and some industrial environments where the ambient stays above freezing. It is not rated for -40°C cold-crank conditions — if the design must start at -40°C, look at the automotive-grade LM5150QURUMRQ1 instead. The 16-SOIC (0.154\" body width, 3.90 mm) package is a standard surface-mount footprint shared by many PWM controllers. The Tube shipping medium is typical for prototype and low-volume builds; production quantities are usually ordered on tape and reel through distribution. ## Control features and topology limits Control features include current limiting, an enable pin for shutdown, and frequency control — the latter lets you set the oscillator timing with an external RC network. There is no clock sync input, so synchronizing multiple converters to a common switching frequency requires external logic or a different controller. Synchronous rectification is not supported, so the external diode rectifier will dominate the thermal budget at higher output currents. ## Lifecycle and sourcing posture It is RoHS3 compliant (NOPB suffix). No official second-source alternate is listed in the record, but the UCC2806DWTR from TI is a functional peer in a similar package with a 50% duty cycle and dual outputs — verify pin compatibility before substituting.","metaTitle":"LM3524DM/NOPB PWM Controller, Buck/Boost, 16-SOIC, Active","metaDescription":"TI LM3524DM/NOPB is an active PWM controller for buck/boost topologies. 8V-40V supply, 49% max duty cycle, 0°C to 125°C junction.","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-Down","Topology":"Buck, Boost","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Frequency Control","Duty Cycle (Max)":"49%","Number of Outputs":"1","Output Configuration":"Positive or Negative","Operating Temperature":"0°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"8V ~ 40V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.84","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.84000","currency":"USD"},{"qty":10,"price":"$1.64900","currency":"USD"},{"qty":25,"price":"$1.55560","currency":"USD"},{"qty":100,"price":"$1.32530","currency":"USD"},{"qty":250,"price":"$1.24444","currency":"USD"},{"qty":500,"price":"$1.08888","currency":"USD"},{"qty":1000,"price":"$0.90222","currency":"USD"},{"qty":2500,"price":"$0.88050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/721841a57df9c484eb43fd576ab59cc2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LM3524DM/NOPB be used for a boost topology?","answer":"Yes, the part supports both buck and boost topologies. However, the 49% maximum duty cycle limits the practical step-up ratio to about 2:1 — for higher boost ratios, a controller with a higher duty cycle limit is needed."},{"question":"What is the closest functional second-source for LM3524DM/NOPB?","answer":"The Texas Instruments UCC2806DWTR is a functional peer with a similar 16-SOIC package, 50% duty cycle, and current-limit control. It has dual outputs and supports synchronous rectification, so verify pin compatibility and circuit changes before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3524DM-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/LM3524DM-NOPB 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}}