XPT4068 is one class AB, double road and bridge type audio power amplifier chip, can use 2.5 V ~ 5.5 V dc power supply; For 4 Ω load provide 3 w power. In addition, when the joint stereo headphones, chip can single terminal work mode driver stereo headphones.

XPT4068 have external control low power off function; The adoption of distinctive technique reduce noise (boot when the tick and crackle) and distortion.

 The main function characteristics of the chip
VDD = 5 v, 4 Ω load, the power output for 3 w
Power down mode leakage current is small, less than 1 µ A
Packaging is small, save circuit area: QFN3 × 3-16 l, SOP16
Power on and off electrical noise suppression
Working voltage range: 2.5 V, 5.5 V
Has the dormancy control function
Stereo headphone amplifiers mode;

Chip applications
Mobile phone (cell phone, etc.)
Personal mobile terminal (PDA/MP3 / MP4 / PMP, etc.)
Bench audio equipment