PAM8906 Piezo Sounder Drivers Diodes Incorporated PAM8906 Piezo Sounder Drivers offer a built-in boost converter capable of driving a piezo sounder with up to 36VPP output. The PAM8906 provides an integrated boost converter to enable an optimized solution with a higher Sound Pressure Level (SPL) for louder output sound and lower quiescent current, along with an auto turn-on/off feature for extended battery runtime. The device is ideal for battery-operated piezoelectric sounder or alarm-related applications.