ICL7662CBD-T

Voltage Regulators - DC DC Switching Regulators Overview

The ICL7662CBD-T is a monolithic high-voltage CMOS power supply circuit manufactured by Analog Devices Inc./Maxim Integrated. It functions as a switched capacitor converter, specifically designed to perform supply voltage conversion from positive to negative for an input range of +4.5V to +20.0V. The device generates complementary output voltages ranging from -4.5V to -20V with a maximum output current of 20 mA. Operating at a switching frequency of 10 kHz, it requires only two noncritical external capacitors for charge pump and reservoir functions. The component is housed in a 14-pin SOIC package (SOIC-14) and supports surface mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Performs supply voltage conversion from positive to negative using a switched capacitor topology
• Requires only two noncritical external capacitors for operation
• Capable of functioning as a voltage doubler in addition to inversion
• CMOS construction ensures low power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Circuits requiring negative supply rails from a single positive source
• Op-amp biasing applications needing dual polarity supplies
• Data acquisition systems requiring signal conditioning power
• Instrumentation interfaces utilizing single-supply logic

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this part number. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated, noting historical transitions from Harris Semiconductor. Ensure the 14-pin SOIC package matches the design footprint requirements. Check RoHS compliance status for the specific production batch. Validate availability through authorized distributors given potential lifecycle changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution for generating negative voltage from a positive rail is required without magnetic components. The 10 kHz switching frequency allows for small external capacitor sizes compared to lower-frequency alternatives. Consider the 20 mA output current limit for load requirements. The 14-pin package offers more pin access than 8-pin variants but requires appropriate PCB space. Verify input voltage stability within the 4.5V to 20V range for optimal performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the ICL7662 family of CMOS voltage converters. Similar parts include the ICL7662CBA+ in an 8-pin SOIC package and the ICL7662CBD+ in a tube-packaged 14-pin SOIC. The family is characterized by its ability to invert or double input voltages using minimal external components. These devices are widely used in industrial and instrumentation applications where isolated or complementary power supplies are necessary.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers include ICL7662CBD+ and ICL7662CBA+. Verify pin compatibility between the 14-pin CBD variant and other package options before substitution.