In this application, the watchdog timing options are based on the WDI signal that is provided to the TPS36-Q1. A watchdog WDI setting must be chosen such that a transition must always occur within the open watchdog window. There are several ways to achieve these window parameters. An external capacitor can be placed on the CWD pin and calculated to have a sufficient window close time. Another option is to use one of the factory-programmed timing options. An additional advantage of choosing one of the factory-programmed options is the ability to reduce the number of components required, thus reducing overall BOM cost.