Point-of-Load (PoL) and Multi-Phase Converters
Technical Lecture Session
DC-DC Converter Applications
DC-DC power conversion, Power integrated circuits, Switched mode power supplies, Spur-free, Hysteretic Control, Microcontrollers.
A buck regulator with hybrid adaptive-on-time/hysteretic control and universal spur-free switching for Microcontroller Units (MCUs) is proposed. The controller enables achieving high efficiency across a wide load range (10 μA-150mA) and eliminates all spurious noise within the regulator. Therefore, it offers a single powering solution for MCUs that require both low-noise operation and high efficiency. The regulator is designed in 65nm CMOS, occupies 0.18mm2, operates from 2.7-4.2V input, and produces a 1.2-3.3V output. The regulator's peak and minimum efficiency are 96.3% and 77.2%, respectively. The regulator is used to directly power a high-performance ADC without any degradation in its performance.