A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
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.
It's not clear what you mean, but the SS/TR pin should not be GND'ed as then the part will not start.
Section 8.3.2 in the D/S explains that floating the SS pin gives the fastest startup time. This is not advised for some applications, due to the higher inrush current drawn. If this is the case, then please add a SS cap.
As well, we have the newer, smaller, more accurate TPS62147/8.