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간접 주파수 보상을 통해 PSRR이 향상된 Low Drop Out 전압 레귤레이터
강찬혁(Chanhyuck Kang),이주열(Jooyeol Rhee) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.11
This study investigates the Power Supply Rejection Ratio (PSRR) performance of different amplifier structures under power supply noise. Simulations reveal similar PSRR at DC levels for both structures but significant differences at 3 MHz. The amplifier with indirect compensation outperformed the conventional one by approximately 40 dB at this frequency. These findings offer insights for optimizing power management ICs against high-frequency noise.