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 comprehensive 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.

FEATURES
● Integrated charge-pump power supply - no
   inductor required
● Thermal protection
● Pop reduction circuitry
● 20VP-P voltage swing into piezoelectric speaker
● QFN-16, 4mm × 4mm

APPLICATIONS
● CD/MP3 players
● Smart phones
● Cellular phones
● PDAs
● Handheld gaming