{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4850LD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4850LD","canonicalUrl":"https://icboms.com/texas-instruments/LM4850LD","factsUrl":"https://icboms.com/api/mcp/products/LM4850LD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® series LM4850LD, Class AB audio amplifier, 1-Channel (Mono) with Stereo Headphones output, 1.9W x 1 @ 3Ohm max power, 2.4V ~ 5.5V supply, -40°C ~ 85°C, 14-WFDFN Exposed Pad package, Surface Mount.","salesMarkdown":"## Class AB mono amplifier with integrated headphone drive The Texas Instruments LM4850LD is a Class AB audio amplifier from the Boomer® series, delivering 1.9W into a 3Ω mono load while also providing a separate stereo headphone output. It operates from a 2.4V to 5.5V supply, making it suitable for single-cell Li-ion or 3.3V/5V logic rails in portable and fixed audio equipment. ## 1.9W into 3Ω — sizing the speaker and thermal budget The 1.9W into 3Ω rating sets the maximum undistorted output into a low-impedance speaker. ## Supply range and logic compatibility The amplifier's input sensitivity is referenced to the supply mid-rail, so a 3.3V logic-level audio codec output will drive it to full swing when the gain is set appropriately. At 2.4V the output power drops — check the headroom against your required SPL if the design must operate near battery end-of-life. For BOM planning this removes the obsolescence risk that haunts older audio amplifier families.","metaTitle":"LM4850LD Class AB Audio Amplifier","metaDescription":"LM4850LD Class AB audio amplifier from TI Boomer® series. 1.9W mono into 3Ω with stereo headphone output. 2.4V-5.5V supply, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Class AB","Series":"Boomer®","Package":"Bulk","Output Type":"1-Channel (Mono) with Stereo Headphones","Mounting Type":"Surface Mount","Package / Case":"14-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.4V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"14-WSON (4x4)","Max Output Power x Channels @ Load":"1.9W x 1 @ 3Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.51","stockQuantity":0,"priceTiers":[{"qty":589,"price":"$0.51000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f551d76ad5ac005a11d7e00efc151774.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LM4850LD and LM4850?","answer":"The LM4850LD is the lead-free (non-RoHS) variant in a 14-WFDFN package, while the base LM4850 typically comes in a different package option. The core Class AB amplifier performance and 1.9W into 3Ω rating are the same. The LD suffix specifically denotes the exposed-pad WSON package for improved thermal performance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4850LD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4850LD 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}}