Si7661 Datasheet

Part No.

In Stock

Price

Packaging

SPQ

Marking

MSL

Pins

Temp Range

Package Description

• +4.5V to +20V Supply to -4.SV to -20V Output
• Cascaded Voltage Multiplication (V_OUT= -n x v•)
• 99.70/o Typical Open Circuit Conversion Efficiency
• Requires Only 2 External Capacitors
• Pin Compatible with the ICL7660

• Inexpensive Negative Supplies
• Data Acquisition Systems
• Up to -20V for Op Amps, and Other Linear Circuits
• Supply Splitter, V_OUT = Vs/2
• RS-232 Power Supplies

The Si7661 is a monolithic charge pump voltage inverter that will convert a positive voltage in the range of +4.5V to +20V to the corresponding negative voltage of -4.5V to -20V. The Si7661 provides performance far superior to previous implementations of charge pump voltage inverters by combining low quiescent current with high efficiency. The Si7661 has an oscillator, control circuitry, and 4 power MOS switches on-chip, with the only required external components being two low cost capacitors.