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Analyze Folded Cascode Amplifier in LDO

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tuanle

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Overall, this is an op-amp structure used in the LDO circuit. I already know it's built with folded cascode and the back end (I guess it's a buffer to improve phase margin and PSRR ???). I don't know if my analysis is correct or not.

Can you help me analyze the circuit or share the document about this case?

Don't be afraid to give your opinion! Thank you everyone for your help !
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