[IEEE 2019 16th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD) - Lausanne, Switzerland (2019.7.15-2019.7.18)] 2019 16th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD) - Modeling of Low-dropout Regulator to Optimize Power Supply Rejection in System-on-Chip Applications