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Hello,
The pinstrap values for several functions of TPS542A50 are different between the datasheet (rev Dec 2021), Webench, and the Design Calculator. For instance, datasheet table 7-1 (R_FSEL) shows 7.5 kohm = 400 kHz, but Webench and the Design Calculator show 10 kohm = 400 kHz. Datasheet table 7-5 shows R_SS/PFM of 47.5 kohm = PFM disable / 2.0 SS CLK / 12.6 ms HICCUP, but Webench and the Design Calculator show 44.2 kohm.
Is it correct to assume that the datasheet is the authoritative source?
I didn't notice the discrepancy, and now I have boards in assembly with R_FSEL = 10 kohm. Will the regulator switch at some value between 400 and 600 kHz, or will it sample that resistor at power-up and pick from one of the discrete switching frequencies listed?
Thanks,
Jonathan
