LP2997MR DDR-II Terminator PMIC Equivalent & Substitute Parts

Part Overview

The LP2997MR is a DDR-II Terminator PMIC manufactured by Texas Instruments, housed in an 8-PowerSOIC package. This component provides termination regulation for DDR-II memory systems, operating across a 2.2V to 5.5V supply voltage range with a maximum supply current of 320µA. The LP2997MR is currently classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

LP2997MR

Texas InstrumentsIn Stock: 2607LP2997MR Datasheet

Current PartRFQ

LP2997MR/NOPB

Texas InstrumentsIn Stock: 2239LP2997MR/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LP2997MR is determined by strict equivalence across the following critical parameters:

• Functional classification: DDR-II Terminator PMIC
• Package type: 8-PowerSOIC (0.154", 3.90mm Width)
• Voltage supply range: 2.2V ~ 5.5V
• Maximum supply current: 320µA
• Operating temperature range: 0°C ~ 125°C
• Surface mount configuration
• Compliance certifications: ROHS3, REACH Unaffected

The LP2997MR/NOPB represents a direct manufacturer equivalent, differing only in packaging format (Tube versus unspecified for the base part number) and product status (Active versus Obsolete). All electrical and mechanical specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

The LP2997MR/NOPB is the direct equivalent for the obsolete LP2997MR. Both parts share identical electrical specifications, mechanical dimensions, and compliance certifications. The primary distinction is product status: LP2997MR/NOPB maintains active manufacturing status, ensuring continued availability and supply chain reliability.

For applications currently using the LP2997MR, transition to LP2997MR/NOPB is supported without design modification. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial DDR-II termination applications.

Frequently Asked Questions (FAQ)

Q: Can LP2997MR/NOPB directly replace LP2997MR in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage supply ranges (2.2V to 5.5V), current specifications (320µA), operating temperature ranges (0°C to 125°C), and 8-PowerSOIC package dimensions. No circuit modifications are required.

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

A: The "/NOPB" designation indicates lead-free plating and compliance with RoHS directives. This is a packaging and manufacturing specification variant, not a functional difference.

Q: Why is the LP2997MR classified as obsolete?

A: Obsolete status indicates the part is no longer in active production by Texas Instruments. The LP2997MR/NOPB remains in active production and serves as the current equivalent.

Q: Are there any package compatibility considerations?

A: Both parts use the 8-PowerSOIC package with identical dimensions (0.154" width, 3.90mm). PCB footprints and assembly processes remain unchanged.

Q: What compliance certifications apply to both parts?

A: Both LP2997MR and LP2997MR/NOPB are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards for industrial applications.