LP3875ES-ADJ Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP3875ES-ADJ is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This Surface Mount device delivers 1.5A output current in a TO-263 (DDPAK-5) package and supports input voltages up to 7V with adjustable output ranging from 1.22V to 6.4V. The part is classified as Last Time Buy, indicating production discontinuation. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently utilizing this regulator.

Substiute Parts

LP3875ES-ADJ

Texas InstrumentsIn Stock: 1656LP3875ES-ADJ Datasheet

Current PartRFQ

LP3875ES-ADJ/NOPB

Texas InstrumentsIn Stock: 1356LP3875ES-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP3875ES-ADJ is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive Adjustable)
• Output current capability (1.5A)
• Input voltage specification (7V maximum)
• Output voltage adjustability range (1.22V to 6.4V)
• Package type (TO-263 DDPAK-5)
• Thermal and protection specifications
• Regulatory compliance (RoHS3, REACH)

Parts meeting all these criteria are classified as direct substitutes. The LP3875ES-ADJ/NOPB variant from Texas Instruments satisfies complete parameter equivalence and represents the primary substitute option.

Parameter Comparison

Engineering Selection Recommendations

The LP3875ES-ADJ/NOPB is the direct substitute for LP3875ES-ADJ. Both parts are manufactured by Texas Instruments and exhibit identical electrical and mechanical specifications. The primary distinction is product status: LP3875ES-ADJ is Last Time Buy while LP3875ES-ADJ/NOPB maintains Active status, indicating ongoing availability and production support.

For new designs or long-term supply requirements, LP3875ES-ADJ/NOPB is the recommended selection. Both parts maintain ROHS3 compliance and identical thermal performance across the -40°C to 125°C operating range. Pinout and package footprint are identical, enabling direct PCB-level substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can LP3875ES-ADJ/NOPB replace LP3875ES-ADJ in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The /NOPB suffix indicates lead-free plating compliance. Direct substitution is possible without circuit modification or PCB redesign.

Q: What does the Last Time Buy status mean for LP3875ES-ADJ?

A: Last Time Buy indicates Texas Instruments has discontinued production of this part number. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. LP3875ES-ADJ/NOPB should be considered for new production orders.

Q: Are the TO-263 package dimensions identical between both parts?

A: Yes. Both parts use TO-263-6 (D2PAK with 5 Leads + Tab) packaging. Footprint, lead spacing, and thermal characteristics are identical.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both LP3875ES-ADJ and LP3875ES-ADJ/NOPB are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is 3 for both parts.

Q: What is the functional difference between these part numbers?

A: There is no functional difference. Both deliver 1.5A adjustable output from 1.22V to 6.4V with identical protection features and thermal performance. The difference is production status and availability.