The power supply rejection ratio (PSRR) is the measure of how well the regulator rejects an AC signal
riding on a nominal input DC voltage. This definition is self-explanatory about what is the power
supply rejection. And, R1 must be for a better rejection.
This would help in detail: http://www.maxim-ic.com/appnotes.cfm/appnote_number/883
riding on a nominal input DC voltage. This definition is self-explanatory about what is the power
supply rejection. And, R1 must be for a better rejection.
This would help in detail: http://www.maxim-ic.com/appnotes.cfm/appnote_number/883
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