PI Expert Online output voltage limt

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PI Expert Online has a lower output voltage limit of 4.75. Is there some specific reason for this limit?

Best regards,
Torbjörn A

Thank you for your interest for PI Expert. Can you tell me which specific product family were you trying to design here? In case you are referring to the InnoSwitch3, the secondary BPS supply requires at least 4.4V to keep the secondary controller alive. Since the BPS supply gets its power from the VOUT pin which is connected to the output voltage, PI Expert does not allow a design with output voltage lower than 4.75V. Let me know if you have any questions.