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Charge Pump DC-DC Converter IC

TPS60403- Voltage Inverter
TPS60403- Voltage Inverter

TPS60403DBVR 60mA Charge Pump Voltage Inverter with Fixed 250kHz Operation

The TPS60403 is an unregulated charge pump voltage inverter IC from Texas instruments. It has a wide working voltage ranging from 1.6V to 5.5V. One interesting fact is that the TPS60403 requires only three 1uF capacitor to operate.
ICL7660 Charge Pump DC-DC Converter IC
ICL7660 DC-DC Converter IC

ICL7660 Charge Pump DC-DC Converter IC

ICL7660 is a charge pump voltage converter IC used to invert the input voltage. This IC can be found in instrumentation and memory circuits. If you looking for low current dual supply voltage design then this IC is the correct choice.