{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4861MX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4861MX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4861MX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4861MX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® series, Class AB audio amplifier, mono 1.5W output into 8Ω, 2V to 5.5V supply, 8-SOIC package, -40°C to 85°C operating temperature.","salesMarkdown":"## Key ratings and what they mean for the BOM The LM4861MX/NOPB: The 1.5W into 8Ω rating is the headline figure — it tells you the amplifier can drive a small speaker to reasonable volume without clipping. At lower supply voltages (say 3V) the output power drops, but the part still delivers useful audio for voice prompts or alert tones. The 2V minimum supply means it can run from a nearly depleted battery, extending runtime in portable gear. Shutdown and thermal protection are built in: the shutdown pin lets a microcontroller put the amp into a low-power idle, and the thermal protection prevents die damage if the speaker is shorted or the ambient temperature spikes. The 8-SOIC package is a standard footprint; no board respin needed if you're replacing an older 8-pin audio amp. ## Lifecycle and sourcing note The LM4861MX/NOPB is listed as Active with ROHS3 compliance. No end-of-life notice or last-time-buy window is on record, so it remains a safe choice for new designs and production replenishment. The part is sourced through independent distribution and quoted to order against an RFQ — availability and current pricing are confirmed at quote time, not on this page.","metaTitle":"LM4861MX/NOPB TI Boomer Class AB Audio Amp, 1.5W Mono 8-SOIC","metaDescription":"LM4861MX/NOPB from Texas Instruments Boomer series: Class AB mono amplifier, 1.5W into 8Ω, 2V-5.5V supply, -40°C to 85°C, 8-SOIC. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"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-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Max Output Power x Channels @ Load":"1.5W x 1 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.61","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.61000","currency":"USD"},{"qty":10,"price":"$2.33400","currency":"USD"},{"qty":25,"price":"$2.21520","currency":"USD"},{"qty":100,"price":"$1.81970","currency":"USD"},{"qty":250,"price":"$1.70104","currency":"USD"},{"qty":500,"price":"$1.50324","currency":"USD"},{"qty":1000,"price":"$1.18677","currency":"USD"},{"qty":2500,"price":"$1.11959","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/092a5aa6da19a8e8be4c28a597027dd8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM4861MX/NOPB RoHS compliant?","answer":"Yes, the LM4861MX/NOPB is ROHS3 compliant per the manufacturer's listing."},{"question":"What are the alternatives to LM4861MX/NOPB?","answer":"Pin-compatible alternatives in the Boomer family include the LM4860 and LM4862, which share the same 8-SOIC footprint and supply range but differ in output power or shutdown logic. Verify the specific output power and control pin function against your design before substituting."},{"question":"What is the pin configuration of LM4861MX/NOPB?","answer":"The LM4861MX/NOPB uses an 8-pin SOIC package. The pinout follows the standard Boomer mono amplifier layout: inputs, output, shutdown, bypass, and supply/ground pins. Refer to the Texas Instruments datasheet for the exact pin map."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4861MX-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/LM4861MX-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}