HEROIC HT4863
The HT4863 is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4Ω load or 2.5W to a 3Ω load with less than 1.0% THD+N. The HT4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. To simplify audio system design, the HT4863 combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.