{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM49150TL/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM49150TL-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM49150TL-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM49150TL%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"LM49150TL/NOPB, Texas Instruments Boomer® series, Class D audio subsystem, 1-channel mono speaker + stereo headphones, 2.1W x 1 @ 4Ω, 42mW x 2 @ 32Ω, I²C, depop, -40°C to 85°C, 20-uSMD.","salesMarkdown":"## What this audio subsystem packs The LM49150TL/NOPB is a Texas Instruments Boomer® Class D audio subsystem. The mono channel delivers 2.1W into 4Ω; the headphone outputs each deliver 42mW into 32Ω. ## Key ratings and what they mean for the BOM The headline output — 2.1W into 4Ω for the mono channel — is enough for a small speaker in a portable speaker dock, a handheld radio, or an industrial annunciator. The headphone output at 42mW per channel into 32Ω drives typical earbuds or headphones to a comfortable listening level. Because it is Class D, the efficiency is high (typically >85% at full power), which keeps the heat dissipation low in the 20-uSMD package — important when the board has no airflow. The I²C interface for volume and shutdown means you can route the control lines to a microcontroller without extra GPIO for analog volume pots. The depop circuit eliminates the need for an external muting FET or output coupling cap on the headphone path, saving board space and BOM cost.","metaTitle":"LM49150TL/NOPB Class D Audio Subsystem","metaDescription":"LM49150TL/NOPB Boomer® Class D audio subsystem: 2.1W mono speaker amp plus stereo headphone output, I²C volume control, -40°C to 85°C. Active, ROHS3 compliant.","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":"Tape & Reel (TR); Cut Tape (CT)","Features":"Depop, E²S, I²C, Mute, Shutdown, Thermal Protection, Volume Control","Output Type":"1-Channel (Mono) with Stereo Headphones","Mounting Type":"Surface Mount","Package / Case":"20-UFBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-uSMD","Max Output Power x Channels @ Load":"2.1W x 1 @ 4Ohm; 42mW x 2 @ 32Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0","stockQuantity":0,"priceTiers":[{"qty":151,"price":"$2.00000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6223436d227e32290b93b7d584c3cff5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM49150TL/NOPB available via RFQ confirmation?","answer":"Stock levels fluctuate daily. The LM49150TL/NOPB is an active part and can be sourced through independent distribution. Submit an RFQ to confirm current stock and lead time for your quantity."},{"question":"What is the output power of LM49150TL/NOPB?","answer":"The mono speaker channel delivers 2.1W into a 4Ω load. The stereo headphone outputs each deliver 42mW into 32Ω."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM49150TL-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/LM49150TL-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}}