Apparatus and methods for radio frequency (RF) PIN diode switches are provided herein. In certain configurations, one or more PIN diode switches are integrated with a driver chip in a common package. The driver chip includes voltage regulators, such as switching regulators and/or charge pumps configured to generate voltage levels used to control biasing of the PIN diode switches. Thus, the packaged switch can operate using a single power supply voltage, which the voltage regulators of the driver chip use to generate biasing voltage levels used for controlling the PIN diode switches.