{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM48821TL/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM48821TL-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM48821TL-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM48821TL%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer® Class AB stereo headphone amplifier, LM48821TL/NOPB, 93mW per channel into 16Ω, I²C volume control, 16-DSBGA package, surface mount.","salesMarkdown":"## Class AB headphone driver with digital control The LM48821TL/NOPB is a Texas Instruments Boomer® series Class AB stereo headphone amplifier in a 16-bump DSBGA package. It delivers 93 mW per channel into a 16 Ω load — enough to drive most consumer headphones to comfortable listening levels from a 2 V to 4 V supply rail. Class AB topology means the output stage operates in linear mode, avoiding the cross-over distortion of Class B while maintaining better efficiency than pure Class A. The trade-off is lower efficiency than a Class D amplifier — expect more heat dissipation in the package for the same output power. ## I²C volume and feature set An I²C interface provides volume control, mute, and shutdown — no external potentiometers or analog switches needed. The depop circuit suppresses the audible pop when the amplifier transitions from shutdown to active, a common annoyance in portable audio designs. Differential inputs reject common-mode noise picked up on the audio signal traces between the codec and the amplifier, which matters in a mixed-signal PCB where digital switching noise couples into analog paths. ## Package and supply considerations The 16-bump DSBGA (0.5 mm pitch) requires a PCB with fine-line routing and a solder mask defined pad layout. The small footprint saves board area but makes manual rework difficult — plan for optical inspection and X-ray of the solder joints during first-article validation. Supply range of 2 V to 4 V covers single-cell Li-ion (3.0-4.2 V) and two-cell alkaline (2.4-3.0 V) applications. Operating temperature from -40 °C to +85 °C suits both consumer portable devices and industrial audio equipment that sees temperature extremes. ROHS3 compliant, with no restricted substances above the threshold limits. Suitable for new designs without obsolescence risk.","metaTitle":"TI LM48821TL/NOPB Class AB Stereo Headphone Amp, 93mW","metaDescription":"Texas Instruments LM48821TL/NOPB Boomer Class AB stereo headphone amplifier, 93mW per channel into 16Ω, I²C volume control, 16-DSBGA, active production.","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":"Depop, Differential Inputs, I²C, Mute, Shutdown, Volume Control","Output Type":"Headphones, 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"16-WFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2V ~ 4V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"16-DSBGA","Max Output Power x Channels @ Load":"93mW x 1 @ 16Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.83000","currency":"USD"},{"qty":10,"price":"$2.54600","currency":"USD"},{"qty":25,"price":"$2.40640","currency":"USD"},{"qty":100,"price":"$2.08560","currency":"USD"},{"qty":250,"price":"$1.97864","currency":"USD"},{"qty":500,"price":"$1.77544","currency":"USD"},{"qty":1250,"price":"$1.51350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/05cc1e6276457894e509b0d122576c82.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LM48821TL/NOPB output power into headphones?","answer":"93 mW per channel into a 16 Ω load. This is the maximum output power at the specified load impedance — actual listening level depends on headphone sensitivity and the audio source signal amplitude."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM48821TL-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/LM48821TL-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}}