MEMORY DEVICES INCLUDING VOLTAGE GENERATION SYSTEMS

A memory device includes a memory array comprising a plurality of planes, a plurality of voltage generation systems, and a controller. Each voltage generation system of the plurality of voltage generation systems is electrically coupled to a corresponding plane of the plurality of planes. The controller is configured to turn on each voltage generation system of the plurality of voltage generation systems in response to a first command to access a first plane of the plurality of planes. The controller is configured to operate the voltage generation system of the plurality of voltage generation systems corresponding to the first plane of the plurality of planes at a first clock frequency, and operate the remaining voltage generation systems of the plurality of voltage generation systems corresponding to the other planes of the plurality of planes at a second clock frequency less than the first clock frequency.