LMC7660IMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LMC7660IMX/NOPB is a switched capacitor voltage converter manufactured by Texas Instruments, designed to generate negative voltages from positive supply rails. It operates within an input voltage range of 1.5 V to 10 V and delivers up to 20 mA of output current. The device produces adjustable negative outputs ranging from -1.5 V to -10 V using a charge pump topology with a fixed switching frequency of 10 kHz. It features a low quiescent current of 120 µA and includes a shutdown function for power management. Packaged in an SOIC-8 surface-mount format, it supports operation between -40°C and +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Generates negative voltage supplies from positive inputs using switched capacitor technology
• Includes a dedicated shutdown pin for controlling power consumption
• Operates with low quiescent current to maintain efficiency in battery-powered applications

Voltage Regulators - DC DC Switching Regulators Applications

• Providing negative bias voltages for operational amplifiers
• Powering RS-232 communication interfaces requiring dual polarity supplies
• Supplying negative rails for analog signal conditioning circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and environmental compliance. Ensure the ordering part number matches the required tape-and-reel configuration for automated assembly processes. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed to invert polarity without inductors. It is suitable for designs requiring moderate current capability at low frequencies. Consider the SOIC-8 footprint constraints and thermal dissipation requirements relative to the expected load current and ambient temperature conditions during integration.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMC7660 series of switched capacitor converters. It serves as a CMOS-based alternative to traditional inductor-based DC-DC converters for generating negative voltages. The family focuses on simplicity and small form factor, making it distinct from higher-power switching regulators or linear inverters in the Texas Instruments portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMC7660IM/NOPB is a tube-packaged variant of the same functional device.