Voltage scaling system

A circuit for downscaling voltage comprising:

• a voltage regulator configured to provide an adjustable voltage supply;
• a voltage comparator configured to output a first output value if a supply voltage of the voltage regulator is greater than a value of a voltage reference and configured to output a second output value otherwise, wherein a first input of the voltage comparator is coupled to an output of the voltage regulator and a second input of the voltage comparator is coupled to the voltage reference;
• a logic device, wherein a first input of the logic device is coupled to an output of the voltage comparator and a second input of the logic device is coupled to a voltage reference ready signal, wherein the voltage reference ready signal indicates the voltage reference is ready for comparison;
• a switch configured to close or open based on an output of the logical device;
• and
• a resistor configured to couple to the output of the voltage regulator when the switch is closed.