The MAX9721AEBC from Analog Devices Inc./Maxim Integrated is a Class AB stereo headphone amplifier Integrated Circuit with a 1-channel (mono) configuration in a 12-UCSP package.
The MAX9721AEBC-T from Analog Devices Inc./Maxim Integrated is a 1-channel (mono) amplifier Integrated Circuit with stereo headphones, Class AB, in a 12-UCSP package.