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WEBENCH® Tools: Webench feedback resistor value selection for power supply designs seems to be slightly off

Other Parts Discussed in Thread: TPS53319

Tool/software: WEBENCH® Design Tools

Webench tool seems to select feedback resistors in power supply designs slightly off from ideal value resulting in lower than desired output voltage. For example, in 1.0V/8A power supply design based on the TPS53319 part, Webench recommended resistors are Rfbt =6.04K and Rfbb=10K. With Vref of TPS53319 = 0.6V the resulting voltage would be 0.9624V which is quite low, especially for FPGA power supplies which typically require +/-3% or better accuracy. A better selection would be 6.65K and 10K resulting in output voltage of 0.999V.

Is it is a software bug or maybe I'm just missing something?