ICL7660AIBA

Voltage Regulators - DC DC Switching Regulators Overview

The ICL7660AIBA is a monolithic CMOS Super Voltage Converter designed as a direct replacement for the industry-standard ICL7660. It operates within an extended supply voltage range of 1.5V to 12V, providing lower supply current and guaranteed performance across commercial and industrial temperature ranges. The device functions as an inverting or step-up converter, generating complementary output voltages from -1.5V to -12V with a maximum output current of 20mA. It utilizes a nominal 10kHz oscillator frequency and requires only two external capacitors for charge pump and reservoir functions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated Frequency Boost pin allows users to achieve lower output impedance using smaller external capacitors.
• Improved SCR latchup protection ensures reliable operation at medium to high input voltages.
• Guaranteed minimum power efficiency of 96% and improved open-circuit voltage conversion efficiency of 99%.
• Low supply current characteristics maintained across all operating temperature ranges.

Voltage Regulators - DC DC Switching Regulators Applications

• Converting +5V logic power supplies to ±5V dual polarity supplies.
• Generating negative bias voltages for operational amplifiers and analog circuits.
• Powering RS-232 interface drivers requiring inverted voltage rails.
• Providing isolated or boosted voltage sources in low-power embedded systems.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and temperature rating. Ensure the ordering code matches the required tape-and-reel or tube packaging configuration. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity. Check for any recent product change notifications regarding labeling or manufacturing site updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a direct upgrade from the legacy ICL7660 is required with enhanced efficiency and latchup protection. Choose the ICL7660AIBA for applications needing operation up to 12V input with reduced quiescent current. Consider the integrated frequency boost feature if board space constraints limit capacitor size. Verify that the 20mA output current capability meets the load requirements of the target circuit design.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the ICL7660 family of Super Voltage Converters manufactured by Renesas Electronics. It represents an evolution of the classic CMOS charge pump technology, offering significant performance improvements over earlier generations. The ICL7660A series specifically addresses limitations found in standard models by extending voltage ranges and improving thermal stability.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The ICL7660AIBA serves as a direct drop-in replacement for the standard ICL7660. Designers upgrading existing circuits should verify that the improved latchup protection does not require changes to the LV pin configuration for high-voltage inputs.