Other Parts Discussed in Thread: TPS74401-EP
I have a design using both the TPS7A4701-EP and the TPS74401-EP and wondering if I apply an external voltage source to the output while the regulator is disabled if it will cause an issue.
essentially Will externally-supplied voltage source at output be a problem for internal circuit blocks within the regulator, e.g. feedback error amplifier?
TPS7A4701-EP (generates 3.3 Vdc) & TPS74401-EP to generate 1.2 Vdc.
Input voltage applied = 5 Vdc.
Disable the regulator by pulling enable pin low.
Key: application of external voltage source while regulator is disabled (3.3 Vdc & 1.2Vdc).
Disabling = no drive to series pass bipolar txtr.