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LM63615-Q1: 电源环路频率响应问题

Part Number: LM63615-Q1

hello, 这是我的原理图

这是TI上仿真出来的波特图

我想请教一下,电源环路频率响应 gain margin 这个参数在什么范围内是合适的?一定要大于10dB吗?这个参数对电路的影响是很什么?

谢谢