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I am trying to generate a web bench for the TPS54260 and I get an error that the calculated duty cycle exceeds limit. According to the datasheet, the duty cycle is 100% for the voltages called out in the design.
TPS54260 can operate at "almost" 100% duty cycle. The On time can be extended beyond 100% but eventually the BOOT voltage will fall below its UVLO and then the cycle will terminate. Webench cannot model that operation at this time.
