Hello,
I am using two TPS55340QRTERQ1 regulators to output 15V @ 1.5A and 28V @ 0.5A using 12V input in my boards. I using the EN (Enable Pin 3) function to control the regulator outputs. The regulator operates correctly during the enabled stage outputting correct output voltages. However, when the regulator is disabled, it outputs approximately 11.6V (slightly lower than my input voltage). The expected result should be 0V when the EN pin is low. I am seeing this issue on both regulators. Please see attached schematics below. I used the WEBENCH design tool for schematic.
I would greatly appreciate your help.
Thanks,
Amar
