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TPS54478: 分析该电源芯片的环路稳定性时,AC分析后得出的对数bode图,是否再0dB时对应的相角已经是相位裕度了?

Part Number: TPS54478

分析该电源芯片的环路稳定性时,AC分析后得出的对数bode图,是否再0dB时对应的相角已经是相位裕度了?