I'd like to set a custom UVLO voltage for my +5.1VDC input (DC/DC generates a +3.3V output). What resistor value range is suggested, 10Ks...100Ks...Megs? And, are there any equations I should use (accounting for hysteresis, internal current sources, voltage limitations or minimums, etc.) or is this 'Precise Enable' as simple as it seems? I've used other TI parts with a resistor divider on the EN pin in the past, but typically there is a little more detail shown in the block diagram, as well as equations provided, which helps.