IS31AP4915
IS31AP4915 is manufactured by ISSI.
20VP-P CHARGE PUMP CERAMIC SPEAKER DRIVER
September 2012 GENERAL DESCRIPTION The IS31AP4915 Features a mono power amplifier with an integrated charge-pump power supply specifically designed to drive the high capacitance of a ceramic loudspeaker. The IS31AP4915 maximizes battery life by offering high performance efficiency. The IS31AP4915 is ideally suited to deliver the high output-voltage swing required to drive ceramic/piezoelectric speakers. The device utilizes prehensive click-and-pop suppression and shutdown control. The IS31AP4915 is fully specified over the -40°C to +85°C extended temperature range and is available in small lead-free 16-pin QFN (4mm × 4mm) packages....
