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LM5175: LM5175 wrong switching frequency

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Part Number:LM5175

Programming of RT/SYNC pin with resistor gives wrong frequency.

I used "LM5175 Buck-Boost Quickstart Tool -- EVM.xlsm" tool which result in RT resistor of 68k for 365kHz. This  assembled resistor produces frequency of 175kHz !?
We assembled new 33k  which generate 347kHz. What is the reason ?  Wrong Formula?    We use LM5175RHFT.

Regards Toni


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