SSM2306 Datasheet, Analog Devices

Filterless Class-D amplifier with built-in output stage 2 W into 4 Ω and 1.4 W into 8 Ω at 5.0 V supply Ultralow idle current with load resistance >87% efficiency at 5.0 .

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The SSM2306 is a fully integrated, high efficiency, Class-D stereo audio amplifier designed to maximize performance for portable applications. The application circuit requires minimum external components and operates from a single 2.5 V to 5.0 V supp.