Patent ID: 11967896
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A mobile device comprising:
a power management system including a first charge pump configured to generate a first charge pump voltage; and
a front end system including a radio frequency switch configured to receive a radio frequency signal and to be controlled by a switch control signal received at an input, a level shifter powered by the first charge pump voltage and configured to generate the switch control signal based on a switch enable signal, a charge pump assistance switch coupled to the input of the radio frequency switch and configured to activate to assist the first charge pump in response to a transition of the switch enable signal from a first state to a second state, and one or more resistors connected between an output of the level shifter and the input of the radio frequency switch, the one or more resistors including a first resistor and a second resistor in series and connected to one another at a tap node, the charge pump assistance switch connected to the tap node.