The NCP1729 is a CMOS charge pump voltage inverter that is designed for operation over an input voltage range of 1.15 V to 5.5 V with an output current capability in excess of 50 mA. The operating current consumption is only 122 A, and a power saving shutdown input is provided to further reduce the current to a mere 0.4 A. The device contains a 35 kHz oscillator that drives four low resistance MOSFET switches, yielding a low output resistance of 26 and a voltage conversion efficiency of 99%. This device requires only two external 3.3F capacitors for a complete inverter making it an ideal solution for numerous battery powered and board level applications. The NCP1729 is available in the space saving TSOP−6 package.
Features • Operating Voltage Range of 1.15 V to 5.5 V • Output Current Capability in Excess of 50 mA • Low Current Consumption of 122 A • Power Saving Shutdown Input for a Reduced Current of 0.4 A • Operation at 35 kHz • Low Output Resistance of 26 • Space Saving TSOP−6 Package • Pb−Free Package is Available
Typical Applications • LCD Panel Bias • Cellular Telephones • Pagers • Personal Digital Assistants • Electronic Games • Digital Cameras • Camcorders • Hand Held Instruments
