LP3996SD-1525 Equivalent & Substitute Parts

Part Overview

The LP3996SD-1525 is a linear voltage regulator IC from Texas Instruments designed for power management applications. It provides positive fixed dual outputs of 1.5V and 2.5V with output currents of 150mA and 300mA respectively in a 10-WSON (3x3) surface mount package. The device integrates over-temperature and short-circuit protection with an enable control feature.

The main part number LP3996SD-1525 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and access components with active manufacturing support and current compliance certifications.

Substiute Parts

LP3996SD-1525

Texas InstrumentsIn Stock: 878LP3996SD-1525 Datasheet

Current PartRFQ

LP3996SD-1525/NOPB

Texas InstrumentsIn Stock: 809LP3996SD-1525/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3996SD-1525 is determined by strict equivalence across the following critical parameters:

Output voltage levels (1.5V and 2.5V fixed outputs), output current ratings (150mA and 300mA), maximum input voltage (6V), dropout voltage specifications, quiescent current, PSRR characteristics, protection features (over-temperature and short-circuit), control features (enable function), operating temperature range (-40°C to 85°C), and package type (10-WSON 3x3 with exposed pad).

The substitute part LP3996SD-1525/NOPB maintains identical electrical specifications and mechanical compatibility. The primary distinction is packaging format: the main part is supplied in standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Additionally, the substitute carries Active product status with ROHS3 compliance, whereas the main part is Obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The LP3996SD-1525/NOPB is a direct functional equivalent to the LP3996SD-1525. Both parts share identical electrical performance, output specifications, and mechanical compatibility within the 10-WSON (3x3) package footprint.

Selection between these parts should be based on the following factors:

For new designs or production requiring long-term component availability, the LP3996SD-1525/NOPB is the appropriate choice due to its Active product status and ROHS3 compliance certification. This part supports modern supply chain requirements and regulatory compliance frameworks.

For legacy system maintenance or repair applications where existing inventory of LP3996SD-1525 is available, the original part number remains functionally suitable provided that RoHS non-compliance does not conflict with application requirements or regional regulations.

The Tape & Reel packaging format of LP3996SD-1525/NOPB is standard for automated assembly operations and high-volume production. Standard packaging of LP3996SD-1525 may be preferred for low-volume or manual assembly scenarios.

Frequently Asked Questions (FAQ)

Q: Are LP3996SD-1525 and LP3996SD-1525/NOPB electrically identical?

A: Yes. Both parts deliver identical electrical performance across all specified parameters including output voltages (1.5V and 2.5V), output currents (150mA and 300mA), dropout voltage, quiescent current, PSRR, and protection features.

Q: What is the difference between these part numbers?

A: The primary differences are product status, packaging format, and compliance certification. LP3996SD-1525/NOPB is Active with ROHS3 compliance and supplied in Tape & Reel format. LP3996SD-1525 is Obsolete, RoHS non-compliant, and supplied in standard packaging.

Q: Can I use LP3996SD-1525/NOPB as a direct replacement for LP3996SD-1525 on existing PCBs?

A: Yes. Both parts use the identical 10-WSON (3x3) package with exposed pad. PCB footprints, land patterns, and assembly processes are compatible without modification.

Q: Which part should I specify for new designs?

A: Specify LP3996SD-1525/NOPB for new designs. This part carries Active status, ensuring long-term availability and manufacturing support. ROHS3 compliance aligns with current regulatory requirements and supply chain standards.

Q: Is the Tape & Reel packaging suitable for my application?

A: Tape & Reel packaging is standard for automated pick-and-place assembly. If manual assembly or low-volume production is required, contact your supplier regarding alternative packaging availability.

Q: What is the impact of RoHS compliance differences?

A: ROHS3 compliance of LP3996SD-1525/NOPB ensures the part meets current environmental and material restriction directives. RoHS non-compliance of LP3996SD-1525 may restrict use in applications subject to RoHS regulations or customer requirements.