{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3424MH/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3424MH-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3424MH-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3424MH%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3424MH/NOPB, DC DC Controller, 2 MHz switching, 4.5 V to 75 V supply, 1 output, Analog/PWM dimming, Surface Mount 20-PowerTSSOP, -40°C to 125°C.","salesMarkdown":"## What this controller does The LM3424MH/NOPB is a DC-DC controller from Texas Instruments designed for driving high-brightness LEDs. It operates as a constant-current controller supporting buck, boost, SEPIC, and flyback topologies, giving the board designer flexibility to match the LED string voltage and input rail. No internal power switch is included — an external MOSFET is required, which lets you scale the output current to the application's needs. Dimming is handled through either an analog control voltage or a PWM signal, covering both smooth brightness adjustment and high-frequency on-off modulation for accurate color or intensity control. Switching frequency goes up to 2 MHz, which helps shrink the inductor and capacitor sizes on the BOM. The input supply range spans 4.5 V to 75 V. Surface-mount assembly is standard; the pad footprint should follow the datasheet recommended land pattern for adequate heat sinking.","metaTitle":"LM3424MH/NOPB LED Driver Controller, 2MHz, 4.5V-75V","metaDescription":"LM3424MH/NOPB DC DC controller for LED drivers. 2MHz switching, 4.5V-75V input, analog/PWM dimming. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"DC DC Controller","Dimming":"Analog, PWM","Package":"Tube","Topology":"Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)","Frequency":"2MHz","Mounting Type":"Surface Mount","Package / Case":"20-PowerTSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Number of Outputs":"1","Internal Switch(s)":"No","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Supply (Max)":"75V","Voltage - Supply (Min)":"4.5V","Supplier Device Package":"20-HTSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.38","priceTiers":[{"qty":1,"price":"$4.38000","currency":"USD"},{"qty":10,"price":"$3.93800","currency":"USD"},{"qty":25,"price":"$3.72280","currency":"USD"},{"qty":100,"price":"$3.22660","currency":"USD"},{"qty":250,"price":"$3.06112","currency":"USD"},{"qty":500,"price":"$2.74674","currency":"USD"},{"qty":1000,"price":"$2.34150","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/10ec9c77262a9b2e7abfd81a4ed427f9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3424MH%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Does LM3424MH/NOPB have internal switches?","answer":"No, the LM3424MH/NOPB is a controller without internal switches. An external MOSFET must be selected to handle the LED load current."},{"question":"Can LM3424MH/NOPB be used in a buck-boost LED driver?","answer":"Yes, the controller supports SEPIC and flyback topologies, both of which can implement a buck-boost function for LED strings where the output voltage may be above or below the input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3424MH-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/LM3424MH-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}}