LM2682 Datasheet (National Semiconductor) - Switched Capacitor Voltage Doubling Inverter

LM2682, Switched Capacitor Voltage Doubling Inverter

The LM2682 is a CMOS charge-pump voltage inverter capable of converting positive voltage in the range of +2.0V to +5.5V to the corresponding doubled negative voltage of *4.0V to *11.0V respectively.

The LM2682 uses three low cost capacitors to provide 10 mA of output current without

LM2682 Features

* n n n n Inverts then doubles input supply voltage Small MSOP-8 package (mini SO-8) and SO-8 package 90Ω typical output impedance 94% typical power efficiency at 10 mA Applications n n n n n LCD contrast biasing GaAs power amplifier biasing Interface power supplies Handheld instrumentation Laptop co