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TPS737: Feedback bias current effect on output error

Part Number: TPS737

Hi Support team

My customer is designing a ckt with the TPS737 that will have two selectable output, 2.8v and 3.6v. Our questions is that since the effective parallel resistance will change, how will this effect the LDO output accuracy? Do you have some equations where we can calculate the error due to the bias currents mentioned in section 8.2.1 Design requirements in the data sheet?

Thanks

Jeff Coletti