ICL7660ISA+

Voltage Regulators - DC DC Switching Regulators Overview

The ICL7660ISA+ is a monolithic CMOS charge pump voltage converter manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 1.5V to 10V and provides a fixed output configuration capable of generating negative voltages or divided positive voltages. The device delivers a maximum output current of 20mA with a standard switching frequency of 10kHz. It is housed in an 8-SOIC surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Generates negative supply rails or halves positive input voltage without requiring external inductors
• Utilizes a switched-capacitor topology for efficient DC-DC conversion
• Includes shutdown functionality to minimize power consumption during idle periods

Voltage Regulators - DC DC Switching Regulators Applications

• Providing negative bias voltages for operational amplifiers
• Generating dual polarity supplies for data acquisition systems
• Powering dynamic RAM circuits requiring negative voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation, as the ISA variant denotes industrial temperature ratings distinct from commercial grades. Confirm RoHS compliance status through official manufacturer documentation, as legacy production runs may vary. Ensure the ordering part number matches the required package type and thermal specifications for the target application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require compact, inductor-free voltage inversion or division. Consider the 20mA output limit and 10kHz switching frequency when evaluating ripple performance and load requirements. Verify that the 8-SOIC footprint aligns with the PCB layout constraints and that the industrial temperature range meets the system's environmental operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the ICL7660 family of switched-capacitor voltage converters. It serves as a direct replacement for older Intersil and Maxim Integrated versions, maintaining pin compatibility while offering updated manufacturing processes. The ISA+ suffix indicates a lead-free, RoHS-compliant version of the standard industrial grade ICL7660ISA.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

• ICL7660ESA+

Voltage Regulators - DC DC Switching Regulators FAQ

What are the primary output configurations available?

The device can function as an inverter to produce a negative output voltage (-Vin) or as a divider to produce half the input voltage (Vin/2).

Does the ICL7660ISA+ require external inductors?

No, it utilizes a capacitor-based charge pump topology, eliminating the need for bulky inductors.