{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4663MTX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4663MTX","canonicalUrl":"https://icboms.com/texas-instruments/LM4663MTX","factsUrl":"https://icboms.com/api/mcp/products/LM4663MTX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® series, Class D audio amplifier, 2-channel (stereo) with stereo headphones, 2.1W x 2 @ 4Ω, 4.5V-5.5V supply, -40°C to 85°C, 24-TSSOP package.","salesMarkdown":"## Class D stereo amplifier in a 24-TSSOP The LM4663MTX is a Texas Instruments Boomer® series Class D audio amplifier with two output channels — one stereo speaker pair plus a separate stereo headphone path. Class D topology keeps quiescent losses low compared to a linear amp, which matters for battery-powered or thermally constrained enclosures. The 24-TSSOP package (4.40 mm body width) suits compact portable audio boards where board area is tight. ## 2.1 W per channel into 4 Ω — what that means for the load Each speaker channel is rated for 2.1 W into a 4 Ω load. ## Supply and temperature — operational boundaries The part runs on a single 4.5 V to 5.5 V supply.","metaTitle":"LM4663MTX Class D Audio Amplifier, 2.1W x 2 @ 4Ω, 24-TSSOP","metaDescription":"LM4663MTX from TI (Boomer® series) is a 2-channel Class D audio amp delivering 2.1W per channel into 4Ω. Active production, RoHS non-compliant.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class D","Series":"Boomer®","Package":"Bulk","Output Type":"2-Channel (Stereo) with Stereo Headphones","Mounting Type":"Surface Mount","Package / Case":"24-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"24-TSSOP","Max Output Power x Channels @ Load":"2.1W x 2 @ 4Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.96","stockQuantity":0,"priceTiers":[{"qty":314,"price":"$0.96000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/707a82cb95dbb2c5538b87e3343117ce.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of LM4663MTX?","answer":"Each speaker channel delivers 2.1 W into a 4 Ω load. The headphone output is a separate path and is not rated at the same power level."},{"question":"Can LM4663MTX be used with 8 ohm speakers?","answer":"Yes, but the output power will be lower than the 2.1 W into 4 Ω rating — expect roughly half the current at the same supply voltage, so about 1 W per channel into 8 Ω."},{"question":"Is LM4663MTX RoHS compliant?","answer":"No, the part is marked RoHS non-compliant. The termination finish contains lead, so verify your assembly process and end-market requirements before specifying it."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4663MTX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4663MTX 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}}