{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4890MX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4890MX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4890MX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4890MX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® series, Class AB audio amplifier, 1-Channel (Mono), 1W x 1 @ 8Ohm, 8-SOIC (0.154\", 3.90mm Width), 2.2V ~ 5.5V supply, -40°C ~ 85°C.","salesMarkdown":"## Built-in features for clean audio and reliability The LM4890MX/NOPB: Depop circuitry suppresses the turn-on thump that otherwise sends a DC transient to the speaker. Shutdown mode cuts quiescent current for battery conservation. Thermal protection prevents die damage under sustained overload or high ambient temperature — useful when the amplifier is driving a speaker inside a sealed enclosure. ## Package and mounting The 8-SOIC package (3.90mm body width) is a standard surface-mount footprint. The /NOPB suffix confirms ROHS3 compliance, so it passes lead-free reflow profiles without issue. The tape-and-reel option (TR) suits automated pick-and-place; cut-tape (CT) is available for prototype or low-volume builds. ## Sourcing and lifecycle The LM4890MX/NOPB is listed as Active with no end-of-life notification. It remains a current-production part from Texas Instruments. For BOM planning, the part is sourced through independent distribution and quoted to order against an RFQ.","metaTitle":"LM4890MX/NOPB TI Class AB Audio Amp, 1W Mono 8-SOIC","metaDescription":"LM4890MX/NOPB from TI Boomer® series: Class AB mono amplifier, 1W into 8Ω, 2.2V-5.5V supply, -40°C to 85°C, 8-SOIC. Active, ROHS3. Sourced to order.","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":"Depop, 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":"2.2V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-SOIC","Max Output Power x Channels @ Load":"1W x 1 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.68000","currency":"USD"},{"qty":10,"price":"$1.50100","currency":"USD"},{"qty":25,"price":"$1.42480","currency":"USD"},{"qty":100,"price":"$1.17020","currency":"USD"},{"qty":250,"price":"$1.09392","currency":"USD"},{"qty":500,"price":"$0.96672","currency":"USD"},{"qty":1000,"price":"$0.76320","currency":"USD"},{"qty":2500,"price":"$0.72000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8f721860ca77094f907e5b9fb251bf2f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LM4890MX/NOPB and LM4890M?","answer":"The LM4890MX/NOPB is the ROHS3-compliant variant of the LM4890M, sharing the same Class AB mono amplifier core, 1W output, and 8-SOIC package. The /NOPB suffix indicates lead-free construction, which is the standard for new designs."},{"question":"Can LM4890MX/NOPB be used in 5V systems?","answer":"Yes, the supply range of 2.2V to 5.5V covers 5V rails directly, so it works in 5V-powered audio circuits without a regulator."},{"question":"What is the pinout of LM4890MX/NOPB?","answer":"The LM4890MX/NOPB uses the standard 8-SOIC pinout for the Boomer® family: pins include shutdown, bypass, audio input, output, and supply/ground. The exact pin mapping is in the TI datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4890MX-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/LM4890MX-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}}