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questions about LDO simulation

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rock_zhu

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The volage reference used chopper architecture for match purpuse, so oscillator is needed. when do simulation we must add PWL to Vdd to make oscillator work normally.In a word, PWL source is mandatory to start the LDO.

so I have some simulation quentions with spectre.
1.how can I get psrr result?
2. Is it maintain PWL source when do any simulation?

I'm a starter and need your helps.
Best regards.
 

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