Micron Technology, Inc.
Power management integrated circuit load switch driver with dynamic biasing

Abstract:

Disclosed is an improved load switch driver for Power Management Integrated Circuit (PMIC) devices. In one embodiment, a PMIC is disclosed comprising a gate driver, the gate driver connected to the gate of a switch; an operation frequency generator connected to the gate driver and configured to supply a periodic voltage to the gate driver; and a voltage sensor, the voltage sensor connected to the operation frequency generator and the source of the switch, the voltage sensor configured to monitor a drain-source voltage of the switch and lower the frequency of the operation frequency generator to a second frequency in response to detecting a collapse of the drain-source voltage.