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TPS784-Q1: TPS784-Q1 output voltage

Part Number: TPS784-Q1 Hello, if i want to set Vout-=1.25V, how to decide the value of R1/R2 since R2 need to be samller than 80K?

Hi Alex, You first pick your R2, and it needs to be smaller than 80K. You will then use Equation 2 and 3 on Page 14 to pick R1. Please let me know if you still have trouble getting the R1. Regards, Jason Song