DC-DC VOLTAGE CONVERTER HAVING STABILIZED DIVIDED OUTPUT VOLTAGE

摘要

A DC-DC voltage converter includes a current comparator converting a fixed reference voltage and an input voltage to a corresponding reference current and input current. The current comparator compares levels of the reference current and input current to output a control signal. A charge pump converts an output voltage to corresponding to a target voltage by performing a charge pumping operation in response to the control signal. An input voltage providing unit divides the output voltage to output the input voltage which is fed back into the current comparator, and as such is capable of reducing the area occupied by the DC-DC voltage converter in the semiconductor device and improving current consumption.