{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPA122DGNRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPA122DGNRG4","canonicalUrl":"https://icboms.com/texas-instruments/TPA122DGNRG4","factsUrl":"https://icboms.com/api/mcp/products/TPA122DGNRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPA122DGNRG4 Class AB stereo headphone amplifier, 70 mW x 2 into 8 ohm, 2.5-5.5 V supply, 8-MSOP-PowerPad, ROHS3.","salesMarkdown":"## 70 mW per channel into 8 ohm — what that means for a headphone output stage The TPA122DGNRG4 is a Class AB stereo amplifier delivering 70 mW per channel into an 8 ohm load — enough drive for low-impedance earbuds or small on-ear headphones in portable gear. The 2.5 V to 5.5 V supply range lets it run from a single Li-ion cell or a 3.3 V rail without a separate audio regulator. Built-in depop circuitry suppresses the turn-on thump that otherwise couples into the headphones. Short-circuit and thermal protection keep the output stage from failing if the headphone jack is plugged or unplugged while powered. ## Package and layout — the PowerPad matters Housed in the 8-MSOP-PowerPad, the exposed pad on the underside must be soldered to a thermal land on the PCB — without it the junction temperature rises quickly under continuous output. The pad also serves as the ground return; a single via under the pad to the ground plane keeps the thermal and electrical path short. Surface-mount only — no through-hole variant. The 8-pin MSOP footprint is common, but the PowerPad adds a centre land that a standard MSOP-8 layout does not have; verify the PCB footprint matches the exposed-pad dimension. ## Active and ROHS3 compliant — no last-time-buy pressure It remains a valid BOM line for new designs and replacement builds.","metaTitle":"TPA122DGNRG4 Class AB Stereo Headphone Amp, 70mW x 2","metaDescription":"Texas Instruments TPA122DGNRG4 Class AB stereo headphone amplifier, 70mW per channel into 8 ohms. Active, ROHS3 compliant. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class AB","Package":"Bulk","Features":"Depop, Short-Circuit and Thermal Protection, Shutdown","Output Type":"Headphones, 2-Channel (Stereo)","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Supplier Device Package":"8-MSOP-PowerPad","Max Output Power x Channels @ Load":"70mW x 2 @ 8Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.34","priceTiers":[{"qty":875,"price":"$0.34000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/975d594da5267d5b6dd62506935abf3f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPA122DGNRG4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy TPA122DGNRG4 and how do I get a price?","answer":"The TPA122DGNRG4 is sourced through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPA122DGNRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPA122DGNRG4 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}}