Input power-supply voltage connector. Twist together the positive input lead and ground return lead from the input power supply, and keep them as short as possible to minimize input inductance. Add additional bulk capacitance between the input supply and ground (use the C1, C2 footprints) if the supply leads are greater than six inches. For example, an additional 47-µF electrolytic capacitor connected from the input supply (J1) to ground can improve the transient response of the TPS785-Q1, and eliminates unwanted ringing on the input because of long wire connections.