Charge Pump Ic. Charge pumps offer high efficiency and compact solutions for applications with generally low output current requirements. By eliminating the inductor these switched capacitor converters provide a small solution footprint and a simpler design.
Operating from input voltages ranging from 1 6v to 5 5v the max1759 generates an output either fixed 3 3v or adjustable 2 5v to 5 5v and delivers output currents up to 100ma. A charge pump ic converts and optionally regulates voltages using switching technology and capacitive energy storage elements. In practical designs using discrete components schottky diodes are usually used instead of conventional diodes because of their lower forward voltage drop.
By eliminating the inductor these switched capacitor converters provide a small solution footprint and a simpler design.
Charge pump efficiency is fairly high in the range of 90 to 95. Regulated charge pumps maintain a constant output with a varying voltage input. In practical designs using discrete components schottky diodes are usually used instead of conventional diodes because of their lower forward voltage drop. Operating from input voltages ranging from 1 6v to 5 5v the max1759 generates an output either fixed 3 3v or adjustable 2 5v to 5 5v and delivers output currents up to 100ma.