IP개요 |
This IP is a CMOS VCO(Voltage Controlled Oscillator) based PWM DC DC Buck converter utilizing voltage sensing signals to determine the duty cycle ratio and increase the power efficiency. The proposed circuit employs VCOs to control digital circuit and duty cycle modulator. This circuit receives the input voltage of 2.7 ~ 3.3V and generates the output voltage of 1V ~ 1.5V with the load current of 1mA to 500mA and switching frequency of 2MHz. The maximum power conversion efficiency of the chip is simulated to be 95% |