I have LP3891EMR-1.2/NOPB.
I intended to supply 1.2V to TMS320F28377D by using LP3891EMR-1.2.
But, it does not work properly. It produces 2.6V fixed voltage, instead of 1.2V.
Here is my pin connection. The package type is SO PowerPAD-8.
I provide 5V to pin 3.
Pin 4,5 are connected to GND properly.
Pin 6,7 are tied together and I supply 3.3V to them because I don't want to use shut down function.
In this configuration, I expected 1.2V to pin 1,2. However, it was 2.6V.
What's wrong? Do I understand the regulator mistakenly?
Thanks for reading.
