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TPS40050-Q1: Switching Frequency betweem TPS40050-Q1 and TPS40054/TPS40057

Part Number: TPS40050-Q1
Other Parts Discussed in Thread: TPS40054, , TPS40057, TPS40050

Hi

We were testing the TPS40050-Q1 and comparing with the TPS40054/TPS40057 and everything is pretty similar. We have a doubt about switching frequency. Basically the three have the same RT = 150K and we tested multiple tps40054 and TPS40057. The Switching frequency are between 334-345kHz which is ok since in theory should be 336. However the TPS40050-Q1 has a little difference in the formula to calculate RT. We tested it with the same RT =150K and the result was 338kHz (two times with different 40050-Q1) and in theory should be 324kHz. What is the range that can vary the oscillator? To check that Fsw is ok as no component is ideal and it will have some error