Systems and methods may include a low-dropout (LDO) voltage regulator for portable communication devices. The systems and methods may include a comparator having first and second inputs and generating a control voltage, the first input receiving a battery voltage from a battery source, the second input receiving a fixed voltage independent from the battery voltage, and a power management circuit that receives the control voltage and provides a regulated voltage based upon the control voltage, wherein when the received battery voltage is above the fixed voltage, the control voltage is provided at a high constant voltage, thereby resulting in the regulated voltage being at a first voltage, and wherein when the battery voltage is below the fixed voltage, the control voltage is provided at a low constant voltage, thereby resulting in the regulated voltage being at a second voltage less than the first voltage.