LP3962ES-2.5 Equivalent & Substitute Parts

Part Overview

The LP3962ES-2.5 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed 2.5V output at 1.5A in a TO-263 (DDPAK-5) surface mount package. The device features integrated protection against overcurrent, overtemperature, and short circuit conditions, with an enable control feature for power management applications.

The main part carries a Last Time Buy product status, indicating discontinued production. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring this voltage regulation specification.

Substiute Parts

LP3962ES-2.5

Texas InstrumentsIn Stock: 1334LP3962ES-2.5 Datasheet

Current PartRFQ

LP3962ES-2.5/NOPB

National SemiconductorIn Stock: 10266LP3962ES-2.5/NOPB Datasheet

DirectRFQ

LP3852ES-2.5/NOPB

Texas InstrumentsIn Stock: 1641LP3852ES-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP3855ES-2.5/NOPB

Texas InstrumentsIn Stock: 764LP3855ES-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP3872ES-2.5/NOPB

Texas InstrumentsIn Stock: 2334LP3872ES-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP3875ES-2.5/NOPB

Texas InstrumentsIn Stock: 951LP3875ES-2.5/NOPB Datasheet

Parametric EquivalentRFQ

LP3965ES-2.5/NOPB

Texas InstrumentsIn Stock: 1063LP3965ES-2.5/NOPB Datasheet

Parametric EquivalentRFQ

MIC39151-2.5WU

Microchip TechnologyIn Stock: 8644MIC39151-2.5WU Datasheet

MFR RecommendedRFQ

MIC39151-2.5WU-TR

Microchip TechnologyIn Stock: 937MIC39151-2.5WU-TR Datasheet

MFR RecommendedRFQ

LP3965ES-2.5

Texas InstrumentsIn Stock: 2317LP3965ES-2.5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3962ES-2.5 is determined by the following critical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 1.5A minimum
• Maximum input voltage of 7V or greater
• Voltage dropout specification of 0.55V @ 1.5A or lower
• Surface mount TO-263 (DDPAK-5) package compatibility
• Integrated protection features (overcurrent, overtemperature, short circuit)
• Enable control functionality
• Operating temperature range of -40°C to 125°C

Substitute parts are grouped into two categories:

Direct Manufacturer Equivalents: Parts with identical electrical specifications and packaging from the same or alternative manufacturers, suitable for direct replacement without design modification.

Parametric Equivalents: Parts meeting or exceeding the core electrical requirements with minor variations in secondary parameters such as quiescent current or PSRR, maintaining functional compatibility within the application constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: LP3962ES-2.5/NOPB (National Semiconductor) provides direct electrical and mechanical equivalence with Active product status, ensuring long-term availability and supply chain stability compared to the Last Time Buy main part.

Secondary Recommendations for Enhanced Performance:

LP3852ES-2.5/NOPB and LP3855ES-2.5/NOPB from Texas Instruments offer improved dropout voltage (0.38V versus 0.55V) and reduced quiescent current (3 mA versus 9 mA), resulting in lower power dissipation and improved efficiency in power-constrained applications. Both maintain Active product status and full ROHS3 compliance.

LP3872ES-2.5/NOPB and LP3875ES-2.5/NOPB provide intermediate quiescent current performance (5 mA) while maintaining the original dropout voltage specification. Both are Active products with ROHS3 compliance.

LP3965ES-2.5/NOPB matches the electrical specifications of the main part with Active product status, providing a direct functional alternative.

Alternative Manufacturer Option: MIC39151-2.5WU and MIC39151-2.5WU-TR from Microchip Technology are functionally compatible with higher maximum input voltage (16V versus 7V) and improved dropout voltage (0.5V). The MIC39151-2.5WU-TR variant in Tape & Reel packaging is suitable for high-volume production environments. Both devices include reverse polarity protection in addition to standard protection features.

All recommended substitutes maintain ROHS3 compliance, MSL 3 rating, and the required operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can LP3852ES-2.5/NOPB directly replace LP3962ES-2.5 in existing designs?

A: Yes. LP3852ES-2.5/NOPB is mechanically and electrically compatible in the TO-263 (DDPAK-5) package. The improved dropout voltage (0.38V versus 0.55V) and lower quiescent current (3 mA versus 9 mA) provide performance benefits without requiring design changes.

Q: What is the difference between LP3965ES-2.5 and LP3965ES-2.5/NOPB?

A: Both parts are electrically identical. The /NOPB suffix indicates halogen-free packaging material compliance. LP3965ES-2.5/NOPB is the preferred specification for new designs and carries Active product status.

Q: Are MIC39151-2.5WU and MIC39151-2.5WU-TR interchangeable?

A: Both parts are electrically identical. MIC39151-2.5WU is supplied in Tube packaging, while MIC39151-2.5WU-TR is supplied in Tape & Reel format. Selection depends on assembly process requirements and volume considerations.

Q: Why does MIC39151-2.5WU have a higher maximum input voltage (16V versus 7V)?

A: The MIC39151 series is designed with a higher input voltage rating. This specification difference does not affect substitution compatibility when the application input voltage remains within 7V maximum, as specified for the LP3962ES-2.5.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL 3 moisture sensitivity rating, meeting current environmental and reliability standards.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in Tube and Tape & Reel (TR) packaging formats. Selection should align with manufacturing process requirements and volume specifications.