{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4889MM/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4889MM-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4889MM-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4889MM%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® Class AB audio amplifier, LM4889MM/NOPB, 1W mono output into 8Ω, 2.2V to 5.5V supply, 8-VSSOP surface-mount package.","salesMarkdown":"## 1W mono into 8Ω — what the output rating means for fit The LM4889MM/NOPB delivers 1W continuous into an 8Ω load from a single supply rail — this is the maximum output power before clipping at 1% THD+N. For a portable speaker or headphone driver, that 1W is enough to drive an 8Ω speaker to moderate listening levels; the actual loudness depends on the speaker's sensitivity (dB SPL per watt). The supply range spans 2.2V to 5.5V, so a single Li-ion cell (3.6V nominal) or a 5V USB rail both work without an extra regulator. At the low end, the output swing is supply-limited — expect about 0.7W into 8Ω at 3.6V. Housed in an 8-VSSOP (3.00mm × 3.00mm, 0.65mm pitch), the LM4889MM/NOPB fits tight portable layouts. The shutdown pin (active-low) pulls the supply current to under 1 µA, letting the host MCU gate the amplifier when no audio is playing. The depop circuit suppresses the turn-on thump that otherwise couples into the speaker. ## Active lifecycle — sourcing posture Sourced to order through independent distribution; availability and current pricing confirmed at RFQ against your BOM quantity.","metaTitle":"LM4889MM/NOPB TI Class AB Audio Amp, 1W Mono, 8-VSSOP","metaDescription":"Texas Instruments LM4889MM/NOPB Class AB audio amplifier, 1W mono into 8Ω, 2.2-5.5V supply, 8-VSSOP package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class AB","Series":"Boomer®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Depop, Shutdown, Thermal Protection","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.2V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-VSSOP","Max Output Power x Channels @ Load":"1W x 1 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.65","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.65000","currency":"USD"},{"qty":10,"price":"$1.47600","currency":"USD"},{"qty":25,"price":"$1.40080","currency":"USD"},{"qty":100,"price":"$1.15070","currency":"USD"},{"qty":250,"price":"$1.07568","currency":"USD"},{"qty":500,"price":"$0.95060","currency":"USD"},{"qty":1000,"price":"$0.75048","currency":"USD"},{"qty":2000,"price":"$0.70800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0b16899d0307cf292e896f65633baff1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the LM4889MM/NOPB come in?","answer":"It is offered in an 8-VSSOP package (3.00mm × 3.00mm, 0.65mm pitch), surface-mount, with an exposed pad for thermal management."},{"question":"How can I order the LM4889MM/NOPB or check availability?","answer":"The LM4889MM/NOPB is an active Texas Instruments part, sourced to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4889MM-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/LM4889MM-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}}