The LM46002 is designed to operate from an input voltage supply range between 3.5 V and 60 V. This input supply must be able to withstand the maximum input current and maintain a voltage above 3.5 V. The resistance of the input supply rail must be low enough that an input current transient does not cause a high enough drop at the LM46002 supply voltage that can cause a false UVLO fault triggering and system reset.

If the input supply is located more than a few inches from the LM46002 additional bulk capacitance may be required in addition to the ceramic bypass capacitors. The amount of bulk capacitance is not critical, but a 47-µF or 100-µF electrolytic capacitor is a typical choice.