TC7660HEOA

Voltage Regulators - DC DC Switching Regulators Overview

The TC7660HEOA is a high-frequency charge pump DC-to-DC voltage converter manufactured by Microchip Technology. It operates with an input voltage range of 1.5 V to 10 V and provides a negative output voltage ranging from -1.5 V to -10 V. The device delivers a maximum output current of 20 mA through a single output channel. It utilizes an inverting topology and features a switching frequency of 120 kHz. The component is housed in an 8-pin SOIC package and supports surface mount installation. It is designed for efficient voltage conversion with low power consumption.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Converts positive logic supply voltages to negative system voltages using an inverting charge pump topology
• Provides ratiometric output configuration allowing flexible voltage scaling relative to the input supply
• Operates at a high switching frequency of 120 kHz to minimize external capacitor requirements
• Delivers up to 20 mA of output current suitable for powering RS232 data loops

Voltage Regulators - DC DC Switching Regulators Applications

• Powering RS232 data communication loops
• Generating negative bias voltages for operational amplifiers
• Providing dual polarity supplies for analog signal processing circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'EOA' confirms the SOIC-8 surface mount package variant rather than the PDIP through-hole version. Confirm the temperature grade corresponds to the commercial or extended range requirements, as suffixes may indicate different operating ranges. Ensure compatibility with the target PCB footprint for the 8-SOIC package dimensions. Check RoHS compliance status if required by assembly specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for generating negative rails from a single positive supply. The 120 kHz switching frequency allows for smaller external capacitors compared to lower frequency alternatives. Ensure the load current does not exceed 20 mA. Consider the SOIC-8 package constraints for thermal management and board space. Verify that the input voltage remains within the 1.5 V to 10 V range for proper regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TC7660 series of charge pump converters. The 'H' suffix typically denotes high-frequency operation (120 kHz) compared to standard variants. The 'E' indicates the SOIC package type. The 'OA' suffix often specifies the tape and reel packaging format. This series is widely used in industrial and consumer electronics requiring simple voltage inversion.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

TC7660SCPA: Offers similar functionality but with a variable frequency range of 10 kHz to 45 kHz and a wider input voltage range up to 12 V. TC7660COA: Provides comparable performance in the same SOIC-8 package but may differ in temperature rating or specific electrical characteristics. Verify pinout compatibility before substitution.