A voltage regulator circuit is disclosed. The voltage regulator circuit includes a level shifter circuit. The level shifter circuit includes first and second nodes that each switch between a first low voltage and a first high voltage, third and fourth nodes that each switch between a second low voltage and a second high voltage, where the second high voltage is different from the first high voltage. The level shifter circuit also includes a DC path circuit connected between the first and third nodes, and arranged to selectively conduct a current between the first and third nodes.