{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4865MM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4865MM","canonicalUrl":"https://icboms.com/texas-instruments/LM4865MM","factsUrl":"https://icboms.com/api/mcp/products/LM4865MM","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® Class AB audio amplifier, LM4865MM, 1-Channel (Mono) with Mono Headphones, 1W x 1 @ 8Ω, 110mW x 1 @ 32Ω, 2.7V-5.5V supply, 8-VSSOP package.","salesMarkdown":"## Class AB mono amplifier with integrated headphone drive and volume control The Texas Instruments LM4865MM is a Boomer® series Class AB audio amplifier delivering 1W into an 8Ω speaker from a single 2.7V to 5.5V supply, plus a separate 110mW output into 32Ω headphones — both from the same mono channel. The 8-VSSOP package (3.00 mm width) and surface-mount footprint suit portable or space-constrained PCB layouts where a single amplifier drives both a small speaker and a headset jack. ## Output power and load matching Rated 1W continuous into an 8Ω load and 110mW into 32Ω — the 8Ω figure covers typical small speakers in battery-powered devices, while the 32Ω rating matches standard consumer headphones without an external headphone amplifier. The 2.7V to 5.5V supply range means the amplifier runs from a single Li-ion cell (3.6V nominal) or a regulated 3.3V/5V rail, with output power scaling proportionally with supply voltage. ## Integrated control and protection features On-chip depop circuitry suppresses the audible pop on power-up and shutdown transitions — a common issue in single-supply audio paths that otherwise requires external muting FETs or timing circuits. The volume control pin accepts a DC voltage to adjust gain, eliminating a mechanical potentiometer from the signal path. Thermal protection and shutdown logic are integrated, reducing external component count. ## Temperature grade and operating environment Rated for -40°C to +85°C ambient (TA), covering industrial and extended-commercial temperature ranges — suitable for outdoor IoT audio endpoints, automotive cabin modules (non-safety), and portable test equipment. ## Lifecycle and procurement posture Sourced through independent distribution channels; availability and current pricing are confirmed at RFQ against the buyer's required quantity. No pin-compatible direct replacement is recorded from TI for this order code.","metaTitle":"Texas Instruments LM4865MM Boomer® Audio Amp, 1W Mono","metaDescription":"Texas Instruments LM4865MM Boomer® Class AB audio amplifier, 1W mono into 8Ω, 110mW into 32Ω headphones. Active production, 8-VSSOP package. Quoted to order.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class AB","Series":"Boomer®","Package":"Bulk","Features":"Depop, Mute, Shutdown, Thermal Protection, Volume Control","Output Type":"1-Channel (Mono) with Mono Headphones","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-VSSOP","Max Output Power x Channels @ Load":"1W x 1 @ 8Ohm; 110mW x 1 @ 32Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.01","stockQuantity":0,"priceTiers":[{"qty":298,"price":"$1.01000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a7eccdff87ca47df6cc0118099ec9084.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of the LM4865MM?","answer":"1W continuous into an 8Ω speaker load, and 110mW into 32Ω headphones, both from a single mono channel."},{"question":"Does the LM4865MM require external components?","answer":"The integrated depop, mute, shutdown, thermal protection, and DC volume control reduce external part count, but the amplifier still requires input coupling capacitors and output filter components per the typical application circuit."},{"question":"What can replace the LM4865MM?","answer":"No pin-compatible direct replacement is recorded from Texas Instruments for this order code. A functional equivalent would need to match the Class AB topology, 1W mono + headphone output, 8-VSSOP package, and DC volume control — confirm pinout and feature set against the target BOM position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4865MM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4865MM 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}}