The LM48520 integrates a boost converter with a high efficiency Class D stereo audio power amplifier to provide up to 1W/ch continuous power into an 8Ωspeaker when operating from 2.7V to 5.0V power supply with boost voltage (PV1) of 5.0V. The LM48520 utilizes a proprietary spread spectrum pulse width modulation technique that lowers RF interference and EMI levels. The Class D amplifier is a low noise, filterless PWM architecture that eliminates the output filter, reducing external component count, board area, power consumption, system cost, and simplifying design.
Features
■ Click and Pop Suppression
■ Low 0.04μA Shutdown Current
■ 78% Efficiency
■ Filterless Class D
■ 2.7V - 5.0V operation
■ 4 Adjustable Gain settings
■ Adjustable output swing limiter with Soft Clipping
