{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM49153TMX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM49153TMX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM49153TMX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM49153TMX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM49153TMX/NOPB, Boomer® / PowerWise® series, Class D + Class G mono audio subsystem with I²C volume control, 1.35W x 1 @ 8Ω + 25mW x 2 @ 32Ω, 25-WFBGA, -40°C to 85°C.","salesMarkdown":"## Mono audio subsystem with Class D speaker and Class G headphone drive The Texas Instruments LM49153TMX/NOPB is a mono audio subsystem that combines a Class D speaker amplifier with a separate Class G headphone amplifier in a single 25-WFBGA package. It delivers 1.35 W into an 8 Ω speaker load and 25 mW per channel into 32 Ω headphones, making it a fit for portable devices that need both a loudspeaker and a headphone jack without a second amplifier IC. The I²C interface handles volume control, input multiplexer selection, and shutdown — all from the host processor. The input mux allows two differential sources to be routed to either the speaker or headphone path, which simplifies signal routing in a phone or tablet PCB. Supply range is 2.7 V to 5.5 V. Operating temperature range is -40°C to 85°C. ## Output power and load budget The speaker channel is rated for 1.35 W into 8 Ω — enough for a small enclosure speaker in a Bluetooth speaker, handheld radio, or portable instrument. The headphone outputs are rated at 25 mW into 32 Ω, which drives typical earbuds or headphones to a comfortable listening level without an external headphone amp. The depop feature suppresses the pop and click that otherwise occur when switching between speaker and headphone paths or during power-up. That matters for any product where the audio path transitions between modes — a phone switching from speakerphone to earpiece, for example. ## Package and footprint The 25-WFBGA measures 2.01 mm x 2.01 mm.","metaTitle":"LM49153TMX/NOPB TI Boomer Class D/G Audio Amp","metaDescription":"LM49153TMX/NOPB from TI is an active Class D, Class G mono audio subsystem with I²C volume control, 1.35W into 8Ω speaker + 25mW headphone outputs.","metaKeywords":null},"attributes":{"series":"Boomer®, PowerWise®","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"Class D, Class G","Series":"Boomer®, PowerWise®","Package":"Bulk","Features":"Depop, Differential Inputs, I²C, Input Multiplexer, Shutdown, Volume Control","Output Type":"1-Channel (Mono) with Mono and Stereo Headphones","Mounting Type":"Surface Mount","Package / Case":"25-WFBGA","lifecycle_stage":"eol_hot","Voltage - Supply":"2.7V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"25-BGA (2.01x2.01)","Max Output Power x Channels @ Load":"1.35W x 1 @ 8Ohm; 25mW x 2 @ 32Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.38","stockQuantity":0,"priceTiers":[{"qty":126,"price":"$2.38000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/12df04cb8c0c82531b60331e6ec62117.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I find the LM49153TMX/NOPB datasheet?","answer":"The datasheet for LM49153TMX/NOPB is available from Texas Instruments and covers the full electrical specifications, I²C register map, application circuits, and PCB layout guidelines."},{"question":"Can LM49153TMX/NOPB drive both a speaker and headphones?","answer":"Yes. The LM49153TMX/NOPB has a mono Class D speaker output rated at 1.35 W into 8 Ω and separate stereo headphone outputs rated at 25 mW per channel into 32 Ω. The I²C-controlled input mux routes the audio source to either path."},{"question":"Does LM49153 support I²C volume control?","answer":"Yes. The LM49153TMX/NOPB includes an I²C interface that controls volume, input multiplexer selection, shutdown, and depop. The volume is set via the I²C register map."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM49153TMX-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/LM49153TMX-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}