This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS54310: TPS54310 output voltage smaller when EN/SS pin only 1.65v.

Part Number: TPS54310

Hi team,

My customer is using the TPS54310 in the system now. Below is the schematic. The input is 3v3, output is 1.5v. As you can see, we put 100k, 100k voltage divider at the EN/SS pin. When we put the divider resistor there, the Vo will drop to 1.3v(which has big gap with 1.5v) when we keep the EN high and remove the pull down resistor. The Vo will be 1.5v. It should have some connections with the SS and internal reference. Could you please help check the reasons? Thanks.