Patent ID: 8749297

Claim:
A switch circuit comprising: a chain of at least three serially coupled field effect transistors (FETs), the chain of FETs coupled between a high-voltage supply and an output node, the chain of FETs turned on or off responsive to a control voltage to couple the high-voltage supply to the output node for outputting a high-voltage output signal; a control/bias circuit for providing the control voltage to turn on or off at least a first FET in the chain of FETs responsive to a control signal; and a pull-down circuit block having a first FET coupled between a low-voltage supply and the output node, a gate of the first FET coupled to receive a complement of the control signal, the first FET of the pull-down circuit block turned on or off responsive to the control signal to couple the low-voltage supply to the output node for outputting a low-voltage output signal.