An efficiency-enhanced CMOS voltage regulator module for bio-electronic implants

Over the decades electronic implants have been widely used in several bio-related domains, such as real-time condition monitoring and neural prosthesis. To maintain long-term usability for a minimally invasive implant, the efficiency on the power recovery circuitry should be maximized. In this paper, a CMOS voltage regulator module in which several novel techniques have been incorporated is presented. In addition to these techniques, we also discuss how the reliability and stability can be improved. The whole design has been implemented in a 0.18-mum CMOS process. Results are presented.