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 µA, and a power saving shutdown input is provided to further reduce the current to a mere 0.4 µA. The device contains a 35 kHz oscillator that drives four low resistance MOSFET switches, yielding a low output resistance of 26 Ω and a voltage conversion efficiency of 99%. This device requires only two external 3.3µF 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 (SOT-23-6) package.

Typical Applications 

• LCD Panel Bias 

• Cellular Telephones

 • Pagers

 • Personal Digital Assistants

• Electronic Games 

• Digital Cameras

• Camcorders

 • Hand Held Instruments

• Operating Voltage Range of 1.5 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

 • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable

 • These Devices are Pb−Free and are RoHS Compliant