CMOS PWM signal generator 975 comprises PMOS 970 and NMOS 980 transistors to produce a periodic rectangular wave with a predetermined frequency (e.g., a PWM signal) as previously described. Feedback controller 920 compensates for high current loads 90 and variations in input power (Vs) by monitoring output voltage (Vo) proximal to the load 90 via voltage sensing loop 930. The feedback controller 920 calculates a voltage error, which is the difference between the actual output voltage Vo and a target output voltage. The target output voltage can be set manually or pre-programmed based on the specifications of the load 90. If there is a positive voltage error (i.e., the actual output voltage Vo is greater than the target output voltage), the feedback controller 920 responds by decreasing the duty cycle of the PWM signal generated by CMOS PWM signal generator 975. If there is a negative voltage error (i.e., the actual output voltage Vo is less than the target output voltage), the feedback controller 920 responds by increasing the duty cycle of the PWM signal generated by CMOS PWM signal generator 975. The switched inductor power converter 905 is configured to respond to low frequency variations in voltage error (e.g., less than the LC resonance frequency of the output low-pass filter). Frequencies higher than the LC resonance frequency cannot pass through the series inductor 940.