LM2662 Datasheet (National Semiconductor) - Switched Capacitor Voltage Converter

LM2662, Switched Capacitor Voltage Converter

The LM2662/LM2663 CMOS charge-pump voltage converter inverts a positive voltage in the range of 1.5V to 5.5V to the corresponding negative voltage.

The LM2662/LM2663 uses two low cost capacitors to provide 200 mA of output current without the cost, size, and EMI related to inductor based converters.

LM2662 Features

* Inverts or doubles input supply voltage Narrow SO-8 Package 3.5Ω typical output resistance 86% typical conversion efficiency at 200 mA (LM2662) selectable oscillator frequency: 20 kHz/150 kHz n (LM2663) low current shutdown mode n n n n n Applications n n n n n n Laptop computers Cellular phones Me