Want to test schematic for TPS65721

Hi,

I've attached a image of the current PMU setupusing the<a href =“http://www.kynix.com/Detail/158438/TPS65721RSNT.html”>tps65721</a> to generate 3.3V on the DCDC converter and then produce 1.8V on the LDO and I just wanted to make sure that my design looks fine. In addition, there is a mode pin that I currently left floating which determines whether the regulator is in PWM mode or PFM mode. Is it ok to leave that floating or should I tie it to gnd/VDD?<a href =“http://www.kynix.com/Detail/158438/TPS65721RSNT.html”>tps65721</a>