LM2682MM Equivalent & Substitute Parts

Part Overview

The LM2682MM is a charge pump switching regulator IC from Texas Instruments designed for negative fixed output voltage generation. It operates as a ratiometric device with a single negative output, capable of producing -Vin or 2Vin configurations. The device is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The LM2682MM/NOPB serves as the direct functional equivalent with improved compliance status and active product availability.

Substiute Parts

LM2682MM

Texas InstrumentsIn Stock: 2266LM2682MM Datasheet

Current PartRFQ

LM2682MM/NOPB

Texas InstrumentsIn Stock: 2273LM2682MM/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2682MM is determined by strict equivalence across the following critical parameters:

• Topology & Function: Charge pump switching regulator with ratiometric output configuration
• Output Characteristics: Negative fixed output (-Vin, 2Vin), single output, 10mA current capacity
• Electrical Specifications: Input voltage range 2V–5.5V, switching frequency 6kHz, operating temperature -40°C to 85°C
• Physical Form Factor: 8-TSSOP/8-MSOP package with 0.118" (3.00mm) width, surface mount configuration
• Functional Equivalence: Identical base product number (LM2682) ensures pin-compatible and functionally equivalent operation

The LM2682MM/NOPB is a direct substitute that maintains all electrical and mechanical specifications while offering active product status and improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The LM2682MM/NOPB is the direct substitute for the obsolete LM2682MM. Selection of the LM2682MM/NOPB is justified by:

• Product Status: The LM2682MM/NOPB maintains active product status, ensuring continued availability and manufacturing support from Texas Instruments.
• Regulatory Compliance: The LM2682MM/NOPB achieves ROHS3 compliance, whereas the original LM2682MM is RoHS non-compliant. This compliance improvement is critical for applications subject to environmental regulations.
• Functional Equivalence: All electrical parameters, switching characteristics, and thermal specifications remain identical, ensuring drop-in compatibility in existing circuit designs.
• Packaging Availability: The LM2682MM/NOPB is supplied in Tape & Reel format, supporting automated assembly processes and high-volume production workflows.

Frequently Asked Questions (FAQ)

Q: Can the LM2682MM/NOPB be used as a direct replacement for the LM2682MM?

A: Yes. The LM2682MM/NOPB is functionally and electrically identical to the LM2682MM. Both devices share the same base product number, pin configuration, package form factor (8-TSSOP/8-MSOP), and all critical electrical specifications including input voltage range, output voltage configuration, switching frequency, and current capacity.

Q: What is the significance of the "/NOPB" suffix?

A: The "/NOPB" suffix indicates that the device is supplied without lead (Pb), reflecting RoHS3 compliance. This designation distinguishes the part from legacy versions and confirms adherence to environmental and regulatory standards.

Q: Are there any differences in thermal or electrical performance between these parts?

A: No. Both the LM2682MM and LM2682MM/NOPB operate identically across the specified temperature range (-40°C to 85°C) and deliver the same electrical performance characteristics. The primary differences are product status and regulatory compliance.

Q: What packaging formats are available?

A: The LM2682MM is available in bulk packaging, while the LM2682MM/NOPB is supplied in Tape & Reel (TR) format. Both use the 8-VSSOP supplier device package with identical physical dimensions (0.118" width, 3.00mm).

Q: Is the LM2682MM still available for purchase?

A: The LM2682MM is classified as obsolete. The LM2682MM/NOPB is the active equivalent and is the recommended choice for new designs and ongoing production.