The CY2305 and CY2309 PLLs enter a power-down mode when there are no rising edges on the REF input. In this state, the outputs are three-stated and the PLL is turned off, resulting in less than 12.0 A of current draw for commercial temperature devices and 25.0 A for industrial temperature parts. The CY2309 PLL shuts down in one additional case as shown in the table below.