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LDO gain & phase margin

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vbhupendra

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how to calculate LDO open loop gain & phase margin ?
in which condition in max load or min load current ?
 

When, you measure the loop gain of the error amp + pass transistor and the required load with esr, you can come up with the Phase margin of the LDO. Open loop gain?? Why do we need this? Do you want to measure the PSRR?
 

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