LM22676: LM22676

Part Number:LM22676

Hi 

My customer use LM22676 output -9V from +14V input voltage.Schematic as below.  There are question is about the capacitor between input to output. About the schematic, is there any requirement about the C802 value ?  If have , how to caculate its value ? or can you help give the value range of this cap.