The LTC1044CN8 charge pump voltage doubler from Linear Technology is a highly-efficient tool that can give you the ability to raise or lower the voltage across components within your circuit. With an output that has a voltage of -1.5 to -9|0.75 to 4.5 V, this is power management at its best. This device has a minimum operating supply voltage of 1.5 V and a maximum of 9 V. This inverting charge pump has an operating temperature range of -40 °C to 85 °C.