The Intersil ICL7662 is a monolithic high-voltage CMOS power supply circuit which offers unique performance advantages over previously available devices. The ICL7662 performs supply voltage conversion from positive to negative for an input range of +4.5V to +20.0V, resulting in complementary output voltages of -4.5V to -20V. Only 2 noncritical external capacitors are needed for the charge pump and charge reservoir functions. The ICL7662 can also function as a voltage doubler, and will generate output voltages up to +38.6V with a +20V input.

Features

? No External Diode Needed Over Entire Temperature

Range

? Pin Compatible With ICL7660

? Simple Conversion of +15V Supply to -15V Supply

? Simple Voltage Multiplication (VOUT = (-)nVIN)

? 99.9 Typical Open Circuit Voltage Conversion

Efficiency

? 96 Typical Power Efficiency

? Wide Operating Voltage Range 4.5V to 20.0V

? Easy to Use - Requires Only 2 External Non-Critical

Passive Components

? Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

? On Board Negative Supply for Dynamic RAMs

? Localized ?Processor (8080 Type) Negative Supplies

? Inexpensive Negative Supplies

? Data Acquisition Systems

? Up to -20V for Op Amps