{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4921ITL/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4921ITL-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4921ITL-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4921ITL%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® series, LM4921ITL/NOPB, Class AB stereo headphone amplifier, 50mW x 2 into 32Ω, I²S/SPI digital input, 2.6V–5.5V supply, -40°C to 85°C, 20-DSBGA package.","salesMarkdown":"## Class AB headphone driver with digital audio interface On-chip features include mute, shutdown, standby, thermal protection, and volume control, all accessible through the digital interface. The 50 mW per channel into 32 Ω is the headline output rating. The digital input (I²S/SPI) means the upstream processor or FPGA sends audio data directly, saving the cost and board area of an external DAC. ## Active lifecycle — no obsolescence contingency needed There is no NRND or last-time-buy notice on this part, so procurement can qualify it into a production BOM without planning for a near-term replacement. Because the lifecycle is Active and there is no EOL risk, the lead time is generally stable — submit an RFQ for the quantity and target delivery window.","metaTitle":"LM4921ITL/NOPB Class AB Stereo Headphone Amp, 50mW, I²S/SPI","metaDescription":"LM4921ITL/NOPB from TI Boomer® series: Class AB stereo headphone amplifier, 50mW x 2 into 32Ω, I²S/SPI digital input, 2.6-5.5V supply, -40 to 85°C.","metaKeywords":null},"attributes":{"series":"Boomer®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class AB","Series":"Boomer®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"DAC, I²S, Mute, Shutdown, SPI, Standby, Thermal Protection, Volume Control","Output Type":"Headphones, 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"20-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2.6V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"20-DSBGA","Max Output Power x Channels @ Load":"50mW x 2 @ 32Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.06","priceTiers":[{"qty":1,"price":"$4.06000","currency":"USD"},{"qty":10,"price":"$3.64300","currency":"USD"},{"qty":25,"price":"$3.44360","currency":"USD"},{"qty":100,"price":"$2.98440","currency":"USD"},{"qty":250,"price":"$2.71404","currency":"USD"},{"qty":500,"price":"$2.43528","currency":"USD"},{"qty":1250,"price":"$2.07600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/58d0212bf21e6e6563c98d07fc0f1061.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4921ITL%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the output power of LM4921ITL/NOPB?","answer":"The LM4921ITL/NOPB delivers 50 mW per channel into a 32 Ω load, stereo."},{"question":"Does LM4921ITL/NOPB have an I2S interface?","answer":"Yes, the LM4921ITL/NOPB includes an I²S digital audio interface, along with SPI for control, mute, shutdown, standby, and volume control."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4921ITL-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/LM4921ITL-NOPB 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}}