ICL7660SIBAT

Voltage Regulators - DC DC Switching Regulators Overview

The ICL7660SIBAT is a monolithic CMOS switched-capacitor voltage converter manufactured by Harris Corporation. It operates as an inverting charge pump, converting positive input voltages to negative outputs with a fixed -1x conversion ratio. The device supports an input voltage range of 1.5V to 12V and delivers up to 45mA output current. It features a typical supply current of 80µA and a switching frequency of 10kHz. The component is housed in an 8-SOIC package and is rated for operation within the industrial temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Monolithic CMOS construction ensures low power consumption and high efficiency without requiring external inductors.
• Integrated oscillator eliminates the need for external timing components, simplifying circuit design.
• Fixed -1x voltage inversion topology provides reliable negative supply generation from positive sources.

Voltage Regulators - DC DC Switching Regulators Applications

• RS-232 transceiver power supplies
• Data acquisition systems requiring dual polarity rails
• Instrumentation circuits needing split supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on the datasheet, as the ICL7660 family has transitioned through Intersil, Renesas, and Analog Devices. Confirm that the specific suffix 'BAT' corresponds to the intended tape-and-reel packaging variant rather than tube packaging. Ensure the revision level matches the required electrical specifications for your application.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple, cost-effective negative voltage rail is needed from a single positive source. It is suitable for applications where moderate output current is sufficient and electromagnetic interference from inductive switching is a concern. Consider the 10kHz switching frequency for noise-sensitive designs.

Voltage Regulators - DC DC Switching Regulators Part Context

The ICL7660 series represents a standard solution for inverting voltage conversion in mixed-signal electronics. Originally developed by Harris Semiconductor, the technology was later acquired by Intersil and subsequently by Renesas Electronics. This legacy part remains widely used in industrial control and communication interfaces.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include the ICL7660CBAZA and ICL7660SIBAZ. Verify pin compatibility and thermal performance when substituting between different package variants or manufacturers within the same family.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the ICL7660SIBAT support voltage multiplication?

No, the standard ICL7660 configuration provides a fixed -1x inversion ratio. Voltage multiplication requires additional external capacitors and diodes not integrated into the basic IC function.

What is the maximum output current capability?

The device can deliver up to 45mA of output current, subject to the input voltage and load conditions specified in the electrical characteristics table.