265mw At 3.3v Supply Audio Power Amplifier With Shutdown Mode - National Semiconductor

The LM4900 is a bridged Audio Power Amplifier capable of delivering 265mW of continuous average power into an 8 load with 1% THD+N from a 3.3V power supply. Boomer Audio Power Amplifiers were designed specifically to provide high quality output power from a low supply volt- age while requiring a minimal amount of external compo- nents. Since the LM4900 does not require output coupling capacitors, bootstrap capacitors or snubber networks, it is optimally suited for low-power portable applications. The LM4900 features an externally controlled, low power consumption shutdown mode, and thermal shutdown protec- tion. The closed loop response of the unity-gain stable LM4900 CAN be configured by external gain-setting resistors. By National Semiconductor Corporation