Selecting input and output caps and Schottky diode for buck convertor circuit
The diodes are listed at the bottom of page 2 in the data sheet and I would go and look at the TI equivalent chip because this will be much more supported in terms of documents. Here's a TI chip that runs at a lower frequency but, in all other aspects is largely identical. Side-by-side comparison: -



So, if Diodes Inc can't come up with the goods study the TI/Nat_semi design and get an idea about the capacitors. Whatever TI recommend for output capacitors you should consider that the Diodes Inc design runs at three times the frequency and hence can normally use one-third the capacitance for the same ripple voltage.