Please refer to the following table from the datasheet (Rev 0 2/15). Mode, SS, Coarse, and Fine are all analog inputs. Every resistance value corresponds to a different function or parameter.
Outputting…
The MAX17509 supports a selectable switching frequency of either 500kHz, 1MHz, 1.5MHz or 2MHz for input supply rails up to 6V. For supply rails greater than 6V, the switching frequency can be programmed…