MAX1  -  Series DataSheet
MAX1720  -  Switched Capacitor Voltage Inverter with Shutdown  -  ON Semiconductor  -  DC-DC Charge Pumps

The MAX1720 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 67 A, and a power saving shutdown input is provided to further reduce the current to a mere 0.4 A. The device contains a 12 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 10F capacitors for a complete inverter making it an ideal solution for numerous battery powered and board level applications.
The MAX1720 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 67 A
• Power Saving Shutdown Input for a Reduced Current of 0.4 A
• Operation at 12 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