LM2682MM/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2682MM/NOPB is a switched capacitor voltage converter manufactured by Texas Instruments, housed in an 8-VSSOP package. It operates as a charge pump with a fixed negative output configuration, providing -Vin and -2Vin options. The device supports an input voltage range from 2 V to 5.5 V and delivers a maximum output current of 10 mA. It functions at a switching frequency of 6 kHz and lacks synchronous rectification. The component is rated for an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Generates negative voltage rails using a charge pump topology without requiring external inductors.
• Offers flexible output configurations including inverted input voltage (-Vin) and doubled inverted voltage (-2Vin).
• Designed for low-frequency operation at 6 kHz, suitable for applications where electromagnetic interference must be minimized.

Voltage Regulators - DC DC Switching Regulators Applications

• Generating negative supply voltages for operational amplifiers or analog circuits.
• Powering RS-232 interface circuits that require dual polarity power supplies.
• Biasing components in portable devices needing compact negative rail generation.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MM indicates the VSSOP-8 package variant when sourcing. Confirm the NOPB designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer part number against official Texas Instruments documentation to ensure authenticity and correct pinout alignment for surface-mount assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution for generating negative voltages is required without the complexity of inductor-based converters. It is appropriate for low-current applications up to 10 mA. Consider the 6 kHz switching frequency for noise-sensitive designs. Ensure the input voltage remains within the 2 V to 5.5 V range for proper regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2682 family of switched capacitor converters from Texas Instruments. It shares functional similarities with other charge pump regulators but is distinct in its specific package type and fixed output capabilities. The family focuses on simple, cost-effective voltage inversion solutions for space-constrained electronic designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM2682MX/NOPB, which offers identical electrical characteristics but utilizes an SOIC-8 package instead of VSSOP-8. Verify pin compatibility and thermal performance differences between the two packages before substitution.