ICL7660ESA+T

Voltage Regulators - DC DC Switching Regulators Overview

The ICL7660ESA+T is a switched-capacitor voltage converter manufactured by Analog Devices Inc./Maxim Integrated. It operates as a charge pump DC-DC switch regulator with an input voltage range of 1.5 V to 10 V and provides a fixed output configuration capable of generating positive or negative voltages relative to the input. The device delivers a maximum output current of 20 mA through a single output channel. It functions at a switching frequency of 10 kHz and is housed in an 8-SOIC surface-mount package with a width of 3.90 mm. The component supports operation within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Capable of generating both positive and negative output voltages from a single supply input
• Inductor-free charge pump topology for compact circuit design
• Includes shutdown functionality for power management

Voltage Regulators - DC DC Switching Regulators Applications

• Single-supply microcontroller systems requiring dual polarity rails
• RS-232 communication interface level shifting
• Data acquisition systems needing negative reference voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the suffix '+T' indicates tape-and-reel packaging, distinct from the tube-packaged 'ESA+' variant. Confirm RoHS compliance status as the base ICL7660ESA was historically non-compliant; check current manufacturer documentation for the specific reel version. Ensure the supplier source is authorized to guarantee authenticity given the component's discontinuation status.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when inductor-based solutions are undesirable due to size or EMI constraints. It is suitable for low-current applications requiring simple voltage inversion or doubling. Compare against the LMC7660 for potential pin-compatible upgrades with improved efficiency. Verify that the 20 mA output current meets the load requirements without excessive voltage drop.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ICL7660 family of CMOS voltage converters. It serves as a legacy solution for basic DC-DC conversion tasks before more advanced synchronous rectifier models became standard. The ESA+ designation identifies the industrial temperature grade and SOIC-8 package form factor within the Maxim Integrated product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include ICL7660ISA+, LMC7660IM/NOPB, and TC7660EOA. These alternatives offer similar functionality but may differ in packaging, RoHS compliance, or manufacturing availability.