It comes in a QFN package, so switching controller can be used for most applications. A switching controller such as this can switch at a value of 1.1MHz . A duty cycle set at 89 % ensures voltage regulator dc to dc reliability during power-on and power-off. Keep dc regulator at a temperature of -40°C or above. Running the machine at 125°C is ideal. It is designed to have voltage regulators switchings with 40 pins. Switching with 2 phases is the property of this controller.
ISL78229ARZ Features
Switching Frequency: 1.1MHz Max Duty Cycle: 89 %
ISL78229ARZ Applications
There are a lot of Intersil (Renesas Electronics America) ISL78229ARZ DC to DC converter applications.