Teensy 4.0, 3.0V with TLV75730P

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BAndiT1983

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Hello everyone,

for a project we require lower voltage than the default 3.3V, specifically 3.15V, to read and write to digital data lines which possibly could be damaged by higher voltage. At some point we decided to replace TLV75733P by TLV75730P, to get around 3.0V and be on the safe side, but Teensy 4.0 refuses to start afterwards. Only if 3.3V from external power supply are applied, then the default blinking is there.

According to the RT1062 specs it should work, as 3.0V is the minimal voltage, but our attempt wasn't successful. Does anybody has advices or tips what could be the cause?
 
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