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TPS65912: Unused pins (LSO and LSI)

aleca101
Prodigy 50 points
Part Number: TPS65912

Hello there, 

From my application, I'm not using the LSI and LSO pins. As of now, I have the former and the latter floating and connected to a 22 uF cap, respectively, but the cap is taking necessary space on the PCB. So I was wondering whether the LSO pin could be left floating or shorted to ground?

Thank you in advance for the attention,

Alex.