1 Features
1• Doubles Input Supply Voltage
• SOT-23 6-Pin Package
• 20-Ω Typical Output Impedance
• 90% Typical Conversion Efficiency at 20 mA
• 0.1-μA Typical Shutdown Current

2 Applications
• Cellular Phones
• Pagers battery•
PDAs
• Operational Amplifier Power Supplies
• Interface Power Supplies
• Handheld Instruments

3 Description
The LM2766 CMOS charge-pump voltage converter
operates as a voltage doubler for an input voltage in the range of 1.8 V to 5.5 V. Two low-cost capacitors
and a diode are used in this circuit to provide up to
20 mA of output current.
The LM2766 operates at 200-kHz switching
frequency to reduce output resistance and voltage
ripple. With an operating current of only 350 μA
(operating efficiency greater than 90% with most loads) and 0.1-μA typical shutdown current, the
LM2766 provides ideal performance for battery•
powered systems. The device is manufactured in a
SOT-23 6-pin package.