Level shifters, methods for making the level shifters and methods of using integrated circuits

A method of using an integrated circuit comprising:

• receiving an input signal at an input end of the integrated circuit;
• selectively electrically coupling a power source to a power node of an input stage through a first switching device based on the input signal;
• selectively electrically coupling the power source to the power node of the input stage through a second switching device based on an output signal at an output end of the integrated circuit;
• selectively electrically coupling a node with the power node through the input stage based on the input signal;
• and
• selectively electrically coupling the power source to the output end of the integrated circuit through a driver stage based on a signal on the node.

A level shifter comprising:

• an input stage arranged to be coupled between an input end and a node;
• a driver stage arranged to be coupled between the node and an output end, the driver stage comprising a first transistor and a second transistor;
• a third transistor comprising:
• a gate end coupled to the input end;
• a first terminal coupled to the input stage;
• and
• a second terminal coupled to a pumped voltage;
• and
• a fourth transistor comprising:
• a gate end coupled to the output end;
• a first terminal coupled to the input stage;
• and
• a second terminal coupled to the pumped voltage.