switching regulator

what speed(frequency) of a switching regulator is okay for Arduino and other electronics such as sensors like PING and GPS?
I found this Pololu Step-Down Voltage Regulator D15V70F5S3
and am wondering if I can connect the output of the regulator directly to the 5 volt rail of my circuit.
will the 700 kHz be fast enough to not damage any of my electronics (I would be running the regulator of a 12 volt lead acid)

..the switching frequency is an internal parameter of a switching regulator (and it is typically between 20kHz-2.5MHz). The important parameters for you are the output voltage and current it can deliver. When working with very sensitive applications one may consider the switching frequency because of the filtering and EMC.