G5931 - Global Mixed-mode Technology

G5931 Switched Capacitor Voltage Inverter

The G5931 is an unregulated charge-pump voltage inverter which may be used to generate a negative supply from positive input. Input voltages ranging from +1.8V to +5V can be inverted into a -1.8V to -5V output supply. The devices is ideal for both battery- powered and board level voltage conversion applications with a typical operating current of 0.45mA at 3.

Features

„ Inverts Input Supply Voltage „ 25mA Output Current with a Voltage Drop of 250mV „ 0.45mA Quiescent Current at 3.3V Supply Voltage „ 99% Voltage Conversion Efficiency „ 1.8V to 5V operating range „ Require Only Two Capacitors „ Over-Temperature Protection „ 8-Pin SOP Package Applications „ Cell Phone „ Small LCD Panels „ Portable Equipment „ Handy-Terminals, PDAs „ Battery-Operated Equipment General Description The G5931 is an unregulated charge-pump voltage inverter which may be used to generate a negative supply from positive input. Input voltages ranging from +1.8V to +5V can be inverted .