Other Parts Discussed in Thread: UCC21530-Q1
Hi There,
My customer is using TPS65320-Q1 and below is the schematic.
The problem is that the 5V output (Buck output) in shutdown during the operation. The buck output is connect to 2 pcs of UCC21530-Q1 as the biased power supple which the current is lower than the OCP threshold of Buck Regulator.
I'd like to point out that customer using the Buck output as the LDO enable (EN2), Is that could be the reason of this abnormal behavior?
Thank you for the support!
Best Regards,
Pin