{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4675SD/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4675SD-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4675SD-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4675SD%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Boomer®, PowerWise® series, LM4675SD/NOPB, Class D Audio Amplifier, 1-Channel (Mono), 2.7W x 1 @ 4Ohm, 2.4V ~ 5.5V supply, Surface Mount, 8-WFDFN Exposed Pad, -40°C ~ 85°C.","salesMarkdown":"## Class D mono amplifier for portable audio The Texas Instruments LM4675SD/NOPB is a Class D mono audio amplifier from the Boomer® and PowerWise® series, delivering 2.7W into a 4Ω load from a single 2.4V to 5.5V supply. Typical applications include portable speakers, mobile phones, GPS units, and other battery-powered audio devices where efficiency and board space are tight. The 2.7W output into 4Ω is the maximum continuous power before clipping at the rated supply and THD. For a 3.7V Li-ion battery, expect around 1.5W into 4Ω at lower distortion — still enough for a small enclosure. The 2.4V to 5.5V supply range covers single-cell Li-ion down to near-depletion and 5V USB rails, so the amplifier keeps running as the battery sags. ## Active lifecycle and ROHS3 compliance The NOPB suffix confirms lead-free soldering compatibility with standard reflow profiles. ## Package and thermal handling The exposed pad is the main heat path — without it, the device will thermally cycle at sustained 2.7W into 4Ω.","metaTitle":"LM4675SD/NOPB Class D Audio Amplifier, 2.7W Mono, 8-WSON","metaDescription":"Texas Instruments LM4675SD/NOPB Class D mono amplifier delivers 2.7W into 4Ω. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Boomer®, PowerWise®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Type":"Class D","Series":"Boomer®, PowerWise®","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Depop, Differential Inputs, PWM, Short-Circuit and Thermal Protection, Shutdown","Output Type":"1-Channel (Mono)","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.4V ~ 5.5V","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"8-WSON (3x3)","Max Output Power x Channels @ Load":"2.7W x 1 @ 4Ohm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.18000","currency":"USD"},{"qty":10,"price":"$1.96200","currency":"USD"},{"qty":25,"price":"$1.85120","currency":"USD"},{"qty":100,"price":"$1.57740","currency":"USD"},{"qty":250,"price":"$1.48112","currency":"USD"},{"qty":500,"price":"$1.29598","currency":"USD"},{"qty":1000,"price":"$1.07381","currency":"USD"},{"qty":2000,"price":"$1.04796","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/34dda3c2ddbbd04d677070ecefa11600.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LM4675SD/NOPB require an external output filter?","answer":"For long speaker wires or EMI-sensitive applications, a small ferrite bead and capacitor may still be added, but the part is designed for filterless operation in most cases."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4675SD-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/LM4675SD-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}}