The WS4611EB-5/TR with PMIC is a power distribution switch manufactured by Will Semiconductor that is designed for monitoring voltage and current levels in order to ensure optimal power management in a system. This SOT-23-5L RoHS device features an adjustable voltage range of 2.7V to 15V. It has two operating modes the "normal" state and the "low current" state in order to regulate the current levels. In addition, the WS4611EB-5/TR offers low quiescent current, high ESD protection, overvoltage protection, over current protection, overtemperature protection, and short circuit protection. It also features thermal shutdown and the ability to adjust the operating frequency up to 1MHz. This device is designed to be used in applications such as mobile devices, digital cameras, and RF communication devices.