LM2660MM/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2660MM/NOPB is a switched capacitor voltage converter manufactured by Texas Instruments, designed for applications requiring negative voltage generation from positive supply rails. It operates within an input voltage range of 1.5 V to 5.5 V and delivers a maximum output current of 100 mA. The device features a fixed switching frequency of 40 kHz and supports output voltages ranging from -5.5 V to -1.5 V. It includes a shutdown function to minimize power consumption and is housed in an 8-pin VSSOP package suitable for surface-mount assembly.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Generates negative output voltages using charge pump topology
• Integrates shutdown control for reduced standby current
• Operates with low input voltage starting at 1.5 V

Voltage Regulators - DC DC Switching Regulators Applications

• RS-232 transceiver bias voltage generation
• LCD display bias circuits
• Op-amp dual supply configuration
• Single-supply systems requiring negative rail

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MM' corresponds to the VSSOP-8 package variant when sourcing. Confirm that the '/NOPB' designation ensures compliance with RoHS standards and absence of halogenated flame retardants. Cross-reference the manufacturer part number against official Texas Instruments documentation to ensure authenticity and correct pinout alignment for your PCB layout.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed to create a negative voltage rail from a single positive source without using inductors. It is appropriate for low-to-medium current loads up to 100 mA where efficiency is less critical than size. Consider thermal performance in dense layouts due to the small package footprint and lack of external inductor heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2660 series of switched capacitor converters. It shares functional similarities with other Texas Instruments charge pump devices but is distinct in its specific output current capability and package type. The MM suffix indicates the plastic small outline package variant, differentiating it from SOIC or die versions found in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2660M/NOPB is a pin-compatible alternative available in an 8-SOIC package.