LP2952AIMX Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2952AIMX is a linear voltage regulator IC from Texas Instruments designed for positive adjustable (fixed) output applications with 250mA output current capability in a 16-SOIC surface mount package. The main part number LP2952AIMX is currently listed as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this regulator topology.

Substiute Parts

LP2952AIMX

Texas InstrumentsIn Stock: 2435LP2952AIMX Datasheet

Current PartRFQ

LP2952AIMX/NOPB

Texas InstrumentsIn Stock: 5391LP2952AIMX/NOPB Datasheet

DirectRFQ

LP2952IMX/NOPB

Texas InstrumentsIn Stock: 4186LP2952IMX/NOPB Datasheet

Parametric EquivalentRFQ

LP2953AIMX/NOPB

Texas InstrumentsIn Stock: 2009LP2953AIMX/NOPB Datasheet

Parametric EquivalentRFQ

LP2953IMX/NOPB

Texas InstrumentsIn Stock: 3058LP2953IMX/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2952AIMX are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following critical parameters that must remain constant across all equivalent parts:

• Output configuration (Positive)
• Output type (Adjustable/Fixed)
• Number of regulators (1)
• Voltage specifications (Input Max: 30V, Output Min/Fixed: 1.23V/5V, Output Max: 29V)
• Voltage dropout (0.8V @ 250mA)
• Output current (250mA)
• Quiescent current (170 µA)
• Control features (Enable)
• Protection features (Over Current, Over Temperature, Reverse Polarity)
• Operating temperature range (-40°C ~ 125°C)
• Package type (16-SOIC)

All substitute parts listed maintain identical electrical performance characteristics and physical package specifications, ensuring direct functional replacement capability.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production continuity, LP2952AIMX/NOPB is the primary direct substitute, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. This part is available in Tape & Reel packaging format suitable for automated assembly processes.

LP2952IMX/NOPB provides parametric equivalence with active product status and ROHS3 compliance. This variant maintains all critical electrical parameters and package specifications.

LP2953AIMX/NOPB and LP2953IMX/NOPB are parametric equivalents from the LP2953 base product family, both with active product status and ROHS3 compliance. These parts maintain identical electrical performance and package form factor.

All substitute parts listed are ROHS3 compliant, addressing regulatory requirements that the original LP2952AIMX does not meet. Selection between available substitutes should be based on packaging format requirements (Tape & Reel vs. bulk), inventory availability, and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can LP2952AIMX/NOPB directly replace the obsolete LP2952AIMX?

A: Yes. LP2952AIMX/NOPB is a direct substitute with identical electrical specifications, output current rating (250mA), voltage parameters, protection features, and 16-SOIC package configuration. The primary difference is packaging format (Tape & Reel vs. bulk) and active product status with ROHS3 compliance.

Q: What is the difference between LP2952IMX/NOPB and LP2952AIMX/NOPB?

A: Both parts maintain identical electrical and mechanical parameters. The designation difference (I vs. A) reflects internal Texas Instruments product line categorization. Both are parametrically equivalent and suitable for direct substitution in applications requiring 250mA positive adjustable linear regulation.

Q: Are LP2953 variants compatible with LP2952 designs?

A: Yes. LP2953AIMX/NOPB and LP2953IMX/NOPB are parametric equivalents with identical voltage specifications (30V input max, 1.23V/5V output min/fixed, 29V output max), current ratings (250mA output, 170µA quiescent), dropout voltage (0.8V @ 250mA), protection features, and 16-SOIC package. The LP2953 base product family maintains full compatibility with LP2952 circuit designs.

Q: What packaging formats are available for substitutes?

A: All substitute parts are supplied in Tape & Reel (TR) packaging format, suitable for automated pick-and-place assembly. The original LP2952AIMX was available in bulk packaging. Tape & Reel format is standard for production environments and provides equivalent component functionality.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (LP2952AIMX/NOPB, LP2952IMX/NOPB, LP2953AIMX/NOPB, LP2953IMX/NOPB) are ROHS3 compliant. The original LP2952AIMX is RoHS non-compliant. ROHS3 compliance ensures compatibility with current regulatory requirements and procurement standards.

Q: What protection features are maintained across all substitute parts?

A: All substitute parts include identical protection features: Over Current protection, Over Temperature protection, and Reverse Polarity protection. These features are maintained across the entire LP2952/LP2953 family.

Q: Is the operating temperature range consistent across all parts?

A: Yes. All parts, including the original LP2952AIMX and all substitutes, operate across the -40°C to 125°C temperature range, ensuring thermal performance consistency in applications across industrial and commercial temperature environments.