ADM8660 Overview
The ADM660/ADM8660 is a charge-pump voltage converter that can be used to either invert the input supply voltage giving VOUT = VIN or double it (ADM660 only) giving VOUT = 2 ϫ VIN. Input voltages ranging from +1.5 V to +7 V can be inverted into a negative 1.5 V to 7 V output supply. This inverting scheme is ideal for generating a negative rail in single power supply systems.