{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4980SD/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4980SD-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4980SD-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4980SD%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer®, PowerWise® Class AB stereo headphone amplifier, LM4980SD/NOPB, 42mW x 2 into 16Ω, 1.5V-3.3V supply, 10-WSON exposed pad, surface mount.","salesMarkdown":"## Active production — what it means for the BOM line For a BOM that already carries the LM4980SD/NOPB, this means no forced redesign or substitute qualification is needed — the line can be replenished through normal supply routes. ## Headroom for portable audio: 42 mW into 16 Ω Rated 42 mW per channel into a 16 Ω load, this Class AB amplifier delivers enough output to drive consumer headphones to listenable levels from a single Li-ion cell. ## Package and rework: 10-WSON with exposed pad The 10-WFDFN exposed pad package, also designated 10-WSON (3x3 mm), has a central thermal pad that must be soldered to a PCB copper plane for heat sinking. The pad also anchors the part — without a good solder joint under it, the package can shift during reflow. For hand rework, preheat the board to 100-120°C before hitting the WSON with hot air. The exposed pad soaks up heat fast; a bottom-side preheat keeps the part from cooling the pad and causing a cold joint. ## Built-in pop suppression and thermal shutdown The depop feature suppresses turn-on/turn-off clicks by ramping the output bias, which matters in battery-powered devices where the amplifier is frequently shut down to save power. The shutdown pin lets a GPIO cut supply current to near zero between audio bursts. Thermal protection folds back output drive if the die temperature exceeds the safe limit — a safeguard if the headphone jack is shorted or the output is driven into a low-impedance load continuously.","metaTitle":"LM4980SD/NOPB Class AB Headphone Amp, 42mW x 2","metaDescription":"Texas Instruments LM4980SD/NOPB Class AB stereo headphone amplifier, 42mW x 2 into 16Ω, 1.5-3.3V supply, 10-WSON. Active, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":"Boomer®, PowerWise®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class AB","Series":"Boomer®, PowerWise®","Package":"Bulk","Features":"Depop, Shutdown, Thermal Protection","Output Type":"Headphones, 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.5V ~ 3.3V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"10-WSON (3x3)","Max Output Power x Channels @ Load":"42mW x 2 @ 16Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.44","stockQuantity":0,"priceTiers":[{"qty":123,"price":"$2.44000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9f74fc73bc3b1b4943bc195977038bcf.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output power of the LM4980SD/NOPB into 16 Ω headphones?","answer":"It delivers 42 mW per channel into a 16 Ω load. This is typical for a low-voltage headphone amplifier running from a 1.5-3.3 V supply — enough for most consumer earbuds and headphones."},{"question":"What compliance documentation does Texas Instruments provide for LM4980SD/NOPB?","answer":"The part is ROHS3 Compliant. Texas Instruments provides a RoHS certificate and material declaration. No REACH, UL, or IEC documentation is listed in the standard product data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4980SD-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/LM4980SD-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}}