{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4949TLX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4949TLX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4949TLX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4949TLX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® LM4949TLX/NOPB Class-D audio amplifier, 2.5W x 2 @ 4Ω stereo speaker output plus 190mW x 2 @ 16Ω headphone drive, I²C volume control, 25-µSMD package, -40°C to 85°C.","salesMarkdown":"## I²C volume control and the BOM it saves Volume, mute, and depop are all managed over the I²C bus — no separate potentiometer, no analog switch, no click-pop suppression RC network. The chip also packs short-circuit and thermal protection, so the output stage doesn't need an external crowbar or a polyfuse. For a two-speaker stereo design with a headphone jack, the LM4949TLX/NOPB replaces maybe five or six discretes. ## Temperature grade and where it runs Rated for -40°C to 85°C ambient, this part handles outdoor portable gear, dashcams, and industrial panel audio where the enclosure gets warm.","metaTitle":"TI LM4949TLX/NOPB Class-D Audio Amp, 2.5W x 2 @ 4Ω","metaDescription":"Texas Instruments LM4949TLX/NOPB Boomer® Class-D audio amplifier, 2.5W x 2 into 4Ω, I²C volume control, 25-µSMD package. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class D","Series":"Boomer®","Package":"Bulk","Features":"Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control","Output Type":"2-Channel (Stereo) with Stereo Headphones","Mounting Type":"Surface Mount","Package / Case":"25-WFBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"25-µSMD (2.7x2.7)","Max Output Power x Channels @ Load":"2.5W x 2 @ 4Ohm; 190mW x 2 @ 16Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.72","stockQuantity":0,"priceTiers":[{"qty":419,"price":"$0.72000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bbdaa1ad482d833ddc1d09181587df30.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of LM4949TLX/NOPB?","answer":"The LM4949TLX/NOPB delivers 2.5W x 2 into a 4Ω speaker load and 190mW x 2 into a 16Ω headphone load."},{"question":"Can LM4949TLX/NOPB replace TPA2012D2?","answer":"Both are 2-channel Class-D amps with I²C volume control in small packages, but the LM4949TLX/NOPB adds a dedicated headphone output channel and depop circuitry. Pin compatibility depends on the specific PCB layout — check the respective datasheets for the ball-map alignment."},{"question":"Does LM4949TLX/NOPB require external components?","answer":"The LM4949TLX/NOPB integrates I²C volume control, depop, mute, short-circuit and thermal protection, so the external BOM is minimal — typically just input coupling caps, output filter caps, and supply bypassing. No external potentiometer or click-suppression network is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4949TLX-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/LM4949TLX-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}}