Charge Pump Voltage Inverter: 1.8-5.3V, 60mA

This tiny voltage inverter generates a negative output voltage corresponding to the voltage provided on its input, which can be from 1.8 V to 5.3 V. The compact (0.3″ × 0.35″) module has a typical efficiency of over 80% and can deliver up to 60 mA continuously.