I want to know how the TPS76901 works at start up when the input voltage is under Vin_min=2,7V?
In my application, at start up, Vin raises from 0 to 5V.
thank you for your answer.
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Unlike the TPS62200, the TPS76901 does not have a UVLO circuit, so the start-up voltage below 2.7V is not defined. The IC could start producing an output voltage at anytime below 2.7V. In addition, this is an older LDO--we have many newer ones that would almost certainly be a better fit for your application. Are you looking for a particular start-up requirement or behavior?