{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPA2018D1YZFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPA2018D1YZFT","canonicalUrl":"https://icboms.com/texas-instruments/TPA2018D1YZFT","factsUrl":"https://icboms.com/api/mcp/products/TPA2018D1YZFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SmartGain™ Class D audio amplifier, TPA2018D1YZFT, mono 3W into 4Ω, I²C volume control, 2.5V-5.5V supply, 9-DSBGA package, active production.","salesMarkdown":"## 3W into 4Ω — what the output rating means for the load The TPA2018D1YZFT: The 3W x 1 @ 4Ω figure is the maximum continuous output power per channel into a 4-ohm speaker load. In a portable design with a 3.7V Li-ion cell, the available output drops as the battery discharges toward 2.5V — the amplifier's supply range covers the full discharge curve, but the headroom for peak SPL narrows below 3.0V. The I²C interface controls gain, volume, and shutdown without external potentiometers or analog switches — the register map sets the gain in 0.5 dB steps from -28 dB to +30 dB, which lets the system processor tune the speaker level per application without changing BOM resistors. Differential inputs reject common-mode noise from the audio source — useful when the amplifier sits on a separate PCB from the codec or when the ground plane carries switching noise from a DC-DC converter. ## 9-DSBGA — package, reflow, and board integration The 9-DSBGA package (0.5 mm pitch, 0.9 x 1.3 mm body) has no exposed thermal pad — all heat dissipates through the solder balls into the PCB copper. Surface-mount assembly with a standard lead-free reflow profile works — the package is MSL1 per TI's standard DSBGA qualification, so no pre-bake is required if the reel is unsealed less than 168 hours before reflow.","metaTitle":"TPA2018D1YZFT Texas Instruments Class D Amp, 3W Mono","metaDescription":"Texas Instruments TPA2018D1YZFT SmartGain Class D audio amp, 3W mono into 4Ω, I²C volume control, 2.5-5.5V supply. Active production, ROHS3. Quoted to order.","metaKeywords":null},"attributes":{"series":"SmartGain™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Class D","Series":"SmartGain™","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Differential Inputs, I²C, Short-Circuit and Thermal Protection, Shutdown, Volume Control","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"9-UFBGA, DSBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2.5V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"9-DSBGA","Max Output Power x Channels @ Load":"3W x 1 @ 4Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.8","priceTiers":[{"qty":1,"price":"$2.80000","currency":"USD"},{"qty":10,"price":"$2.51500","currency":"USD"},{"qty":25,"price":"$2.37240","currency":"USD"},{"qty":100,"price":"$2.02130","currency":"USD"},{"qty":250,"price":"$1.89796","currency":"USD"},{"qty":500,"price":"$1.66072","currency":"USD"},{"qty":1250,"price":"$1.37603","currency":"USD"},{"qty":2500,"price":"$1.34290","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/02a68cf29218e3c423eaf884116f9df0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPA2018D1YZFT/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the TPA2018D1YZFT?","answer":"The TPA2018D1 is a unique TI SmartGain device; a functional replacement would require a board respin if the package or pinout differs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPA2018D1YZFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPA2018D1YZFT 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}}