The LM4674A is a filterless stereo Class D audio power amplifier capable of delivering 2.5W per channel into a 4,Ѷ load with less than 10% total harmonic distortion plus noise (THD+N). It operates from a single supply voltage ranging from 2.4V to 5.5V, making it suitable for battery-powered applications. The device features a low noise PWM architecture that eliminates the need for an output filter, thereby reducing the external component count and simplifying the design. It includes logic-selectable gain options and independent shutdown controls for each channel, which enhance power savings in mixed mono/stereo applications. The LM4674A also incorporates output short circuit protection and click and pop suppression to minimize audible transients during power-up and shutdown. With a compact 2mm x 2mm x 0.6mm DSBGA package, it is designed for space-constrained applications such as mobile phones, PDAs, and laptops. The amplifier achieves high efficiency, with typical values of 85% at 500mW output into an 8,Ѷ load at 3.6V.
Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85
Amplifier IC 2-Channel (Stereo) Class D 16-DSBGA
Amplifier IC 2-Channel (Stereo) Class D 16-DSBGA
Amplifier IC 2-Channel (Stereo) Class D 16-DSBGA
Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85 Product overview: LM4674ATL/NOPB from Texas Instruments is an Audio Amplifier for embedded electronics, industrial equipment, maintenance repair, OEM production, and component sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include Audio Amplifier, Audio Amplifiers, electronic component, datasheet, replacement part. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 742-LM4674ATL/NOPB can be used for catalog matching and distributor lookup.
Audio Amplifiers Filterless 2.5 Stereo Class D Audio Power Amplifier 16-DSBGA -40 to 85
Amplifier IC 2-Channel (Stereo) Class D 16-DSBGA
Amplifier IC 2-Channel (Stereo) Class D 16-DSBGA
IC AMP CLASS D STER 2.5W 16DSBGA
IC AMP CLASS D STER 2.5W 16DSBGA
| Texas Instruments | DigiKey | ERSAELECTRONICS PTE. LTD. | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Audio Amplifier Chips | Audio Amplifier Chips | Audio Amplifier Chips | Operational Amplifiers | Audio Amplifier Chips | Operational Amplifiers | Audio Amplifier Chips |
| Product Number | LM4674ATL/NOPB | LM4674ATL/NOPBDKR-ND | 742-LM4674ATL/NOPB | LM4674ATL/NOPB | LM4674ATL/NOPB | LM4674ATL/NOPB | LM4674ATL/NOPB |
| Product Name | LM4674A Filterless 2.5 Stereo Class D Audio Power Amplifier | Audio Amplifiers | Audio Amplifier | Audio Amplifiers | Audio Amplifiers | Integrated Circuits (ICs) - Linear - Amplifiers | Linear - Amplifiers - Audio |
| RoHS Compliant | RoHS | RoHS | RoHS | ||||
| Supply Voltage (VS) | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 2.4 to 5.5 volts | 5.5 to 2.4 volts | ||
| Output Power | 1.2 watts | 2.5 watts | 2.5 watts | 2.5 watts | |||
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | |
| Package Type | DSBGA | 16-WFBGA, DSBGA | Tape and Reel | 16-WFBGA, DSBGA | 16-WFBGA, DSBGA |
