Mono 1.5 W / Stereo 300mW Power Amplifier

The LM4853 is an Audio Power Amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4 bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32 single-ended (SE) loads with 1% THD+N, using a 5V power supply.
The LM4853 CAN automatically Switch between mono BTL and stereo SE modes utilizing a Headphone sense pin. It is ideal for any system that provides both a monaural speaker output and a stereo line or Headphone output
Boomer Audio Power Amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4853 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The LM4853 features an externally controlled, micropower consumption shutdown mode and thermal shutdown protection. The unity-gain stable LM4853 's gain is set by external gain-setting resistors
By National Semiconductor Corporation