{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4866MTEX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4866MTEX","canonicalUrl":"https://icboms.com/texas-instruments/LM4866MTEX","factsUrl":"https://icboms.com/api/mcp/products/LM4866MTEX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® Class AB audio amplifier, 2-channel stereo, 3.2W x 2 @ 3Ω, 20-PowerTSSOP (0.173\", 4.40mm Width), Surface Mount, 2V ~ 5.5V supply, -40°C ~ 85°C.","salesMarkdown":"## What this Boomer® stereo amp delivers on the board The LM4866MTEX: The 20-PowerTSSOP (also called 20-HTSSOP) has a thermal pad underneath — that pad is the main heat path. A board layout that vias it to a ground plane keeps the junction temperature under control at full output into 3Ω. The supply range from 2V to 5.5V means it runs off a single Li-ion cell or a 5V USB rail. ## Package rework and board-fit considerations The exposed pad needs a solder stencil opening that covers 50-70% of the pad area; too much paste and the part floats, too little and the pad doesn't wet. RoHS non-compliant means the finish is tin-lead — it reflows at a lower temperature than lead-free SAC305, so if you're mixing this part on a lead-free board, set the reflow profile for the lead-free alloy and accept that the LM4866MTEX joints will be reflowed above their intended peak. The part itself is rated for the higher temp, but the solder joint reliability shifts. ## Lifecycle and sourcing posture Availability and current pricing confirmed against an RFQ — no stock-holding claim, quoted per BOM quantity.","metaTitle":"Texas Instruments LM4866MTEX Boomer® Audio Amp, 3.2W x 2","metaDescription":"Texas Instruments LM4866MTEX Class AB stereo audio amplifier, 3.2W per channel into 3Ω. 20-HTSSOP package, 2V-5.5V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class AB","Series":"Boomer®","Package":"Bulk","Output Type":"2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"20-PowerTSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-HTSSOP","Max Output Power x Channels @ Load":"3.2W x 2 @ 3Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.59","stockQuantity":0,"priceTiers":[{"qty":507,"price":"$0.59000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7b682fc4c5ae0dba2cc72f0f368338fb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM4866MTEX?","answer":"Submit an RFQ through this listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4866MTEX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4866MTEX 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}}