The ICL828 IC performs supply voltage conversions from positive to negative for an input range of +1.5V to +5.5V resulting in complementary output voltages of -1.5V to -5.5V. The ICL828 has a 12kHz internal oscillator and requires two capacitors to invert the supply voltage. Cascading may be made to increase the output voltage. The high efficiency (greater than 90 over most of the load-current range) and low operating current (60µA typical) make these devices ideal for both battery-powered and board-level voltage conversion applications.

Features

• 5-Lead SOT23-5 Package

• 99 Open Circuit Voltage Conversion Efficiency

• Inverts Input Supply Voltage

• High Power Supply Efficiency

• Input Voltage Range. . . . . . . . . . . . . . . . . .+1.5V to +5.5V

• May be Cascaded to Increase Output Voltage

• Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25mA

• Quiescent Current . . . . . . . . . . . . . . . . . . . . . . . . . . 60µA

• Pin for Pin Compatible to MAX828

• Small Package Size

Applications

• Simple Conversion . . . . . . . . . . . . . . . . . . . . . +5V to -5V

• Voltage Multiplication . . . . . . . . . . . . . . . . . .VOUT = -nVIN

• Supply Splitter

- Operational Amplifiers

- Bias Supplies

• Hand Held Products

- Cell Phones

- PDAs

- GPS

- Pagers

• LCD Panels