Diodes has introduced a digital stereo audio amplifier with built-in boost converter that allows 8+8W to be delivered from one Li-ion cell and 12+12W from two cells in series. Called PAM8965, more detailed figures are: One cell (Vbatt = 3.7V) 8W/channel at 10% THD+N (6Ω load 1kHz) 6.4W/channel at 1% THD+N (6Ω load 1kHz) 20mA ...
This story continues at Digital audio amplifier delivers 8+8W stereo from one Li-ion cell
Or just read more coverage at Electronics Weekly