{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4871MMX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4871MMX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4871MMX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4871MMX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® LM4871MMX/NOPB, Class AB audio amplifier, 1-channel mono, 3W x 1 @ 3Ω, 2V ~ 5.5V supply, -40°C ~ 85°C, surface mount 8-VSSOP package.","salesMarkdown":"## 3W into 3Ω — the output rating that sets the application The LM4871MMX/NOPB is a Texas Instruments Boomer® series Class AB audio amplifier delivering 3W into a 3Ω load from a single channel. That 3W figure is the headline spec — it tells you this part is sized for a small speaker or transducer in a portable or battery-powered device, not a line-level preamp or a multi-channel home audio system. ## Supply rails: 2V to 5.5V — fits 3.3V and 5V systems The supply range runs from 2V to 5.5V, which means it runs cleanly off a single 3.3V or 5V rail without needing a separate audio supply. That simplifies the power tree on a portable PCB — one regulator feeds both the digital core and this amplifier. At 3.3V the output power will be lower than the rated 3W at 3Ω, but the part still operates within its linear region.","metaTitle":"LM4871MMX/NOPB Class AB Audio Amplifier, 3W Mono, 8-VSSOP","metaDescription":"Texas Instruments LM4871MMX/NOPB Boomer® Class AB audio amplifier, 1-channel mono, 3W into 3Ω, 2V-5.5V supply, -40°C to 85°C, 8-VSSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"Class AB","Series":"Boomer®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Shutdown, Thermal Protection","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Base Product Number":"LM4871","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"8-VSSOP","Max Output Power x Channels @ Load":"3W x 1 @ 3Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8a46f391f29a466ba3af0aa865e92cea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4871MMX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Can LM4871MMX/NOPB be used in a 3.3V system?","answer":"Yes. The supply range is 2V to 5.5V, so a 3.3V rail is well within the operating window. Output power will be lower than the 3W rating at 5V, but the amplifier remains fully functional."},{"question":"Can LM4871MMX/NOPB drive a 3 ohm load?","answer":"Yes, the 3W output power is specified into a 3Ω load. That is the rated condition — the amplifier is designed to drive that impedance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4871MMX-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/LM4871MMX-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}