DiodesZetex,Audio, 16-Pin UQFN PAM8904EJER

The DiodesZetex 18VPP output piezo sounder driver is integrated charge pump boost converter. This is capable of driving a ceramic/piezo sounder with 27VPP from a 4.5V power supply It has 16 pin count and used in class B. The boost converter operate at a fixed frequency of 100kHz and provide a 3X VIN output with a minimum number of external component.

No voltage cross output at shutdown mode
Low current consumption