TC7660SCOA

Voltage Regulators - DC DC Switching Regulators Overview

The TC7660SCOA is a Super Charge Pump DC-to-DC voltage converter manufactured by Microchip Technology. It operates within an input voltage range of +1.5 V to +12 V and provides a corresponding negative output ranging from -1.5 V to -12 V. The device delivers a maximum output current of 20 mA through a single output channel. It utilizes a charge pump topology with a standard switching frequency of 10 kHz, which can be boosted to 45 kHz via an external pin connection. The component is housed in an 8-SOIC surface-mount package and is rated for operation between 0°C and +70°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Pin-compatible replacement for the industry standard TC7660 charge pump voltage converter
• Converts positive input voltages to corresponding negative outputs using only two capacitors
• Eliminates the need for inductors, reducing cost, size, and electromagnetic interference
• Includes an oscillator boost feature to increase switching frequency for smaller external components

Voltage Regulators - DC DC Switching Regulators Applications

• Generating negative supply rails for RS-232 data loops
• Converting +5V logic supplies to ±5V system requirements
• Power management in battery-operated instrumentation
• Test and measurement equipment requiring isolated negative voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'COA' corresponds to the SOIC-8 tube packaging configuration when ordering. Confirm that the application environment remains within the specified 0°C to +70°C operating temperature range. Ensure external capacitor selections align with the required switching frequency settings to maintain stable voltage conversion performance.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a pin-compatible upgrade from the legacy TC7660 is required for existing designs. It is suitable for applications needing a simple, inductor-free solution for generating negative voltages from a positive source. Consider the 20 mA output limit and the specific thermal constraints of the SOIC-8 package during circuit layout.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TC7660S series of super charge pump converters. It serves as an enhanced version of the original TC7660, offering improved features such as extended input voltage ranges and oscillator boost capabilities while maintaining physical and electrical compatibility with standard charge pump architectures used in legacy communication interfaces.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

TC7660SCOA713 is listed as a direct substitute variant.