LP3876ES-5.0 Equivalent & Substitute Parts

Part Overview

The LP3876ES-5.0 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed positive 5V output at 3A maximum current in a TO-263 (DDPAK-5) surface mount package. The main part number LP3876ES-5.0 is currently obsolete, with 4652 units available in inventory. Due to its obsolete status, identifying active equivalent and substitute parts is essential for ongoing design support and procurement continuity.

Substiute Parts

LP3876ES-5.0

Texas InstrumentsIn Stock: 4750LP3876ES-5.0 Datasheet

Current PartRFQ

LP3876ES-5.0/NOPB

Texas InstrumentsIn Stock: 857LP3876ES-5.0/NOPB Datasheet

DirectRFQ

LP3853ES-5.0/NOPB

Texas InstrumentsIn Stock: 2308LP3853ES-5.0/NOPB Datasheet

Parametric EquivalentRFQ

LP3856ES-5.0/NOPB

Texas InstrumentsIn Stock: 1054LP3856ES-5.0/NOPB Datasheet

Parametric EquivalentRFQ

LP3873ES-5.0/NOPB

Texas InstrumentsIn Stock: 2397LP3873ES-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3876ES-5.0 is determined by the following critical parameters:

• Output voltage: 5V fixed
• Output current capability: 3A
• Package type: TO-263 (DDPAK-5)
• Input voltage maximum: 7V
• Protection features: Over Current, Over Temperature, Short Circuit
• Control features: Enable function
• Operating temperature range: -40°C to 125°C
• Mounting type: Surface Mount

Substitute parts are grouped into two categories:

Direct Equivalent: LP3876ES-5.0/NOPB maintains identical electrical specifications and is the active production version of the obsolete LP3876ES-5.0.

Parametric Equivalents: LP3853ES-5.0/NOPB, LP3856ES-5.0/NOPB, and LP3873ES-5.0/NOPB share the same output voltage, current rating, package, and operating temperature range. These parts differ in specific parameters including voltage dropout characteristics, quiescent current, and supply current specifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: LP3876ES-5.0/NOPB is the recommended primary substitute. It maintains identical electrical specifications to the obsolete LP3876ES-5.0 while offering active product status and ROHS3 compliance. This part is suitable for new designs and ongoing production requiring no circuit modifications.

For Parametric Substitution: LP3853ES-5.0/NOPB and LP3856ES-5.0/NOPB offer improved performance characteristics with reduced voltage dropout (0.6V versus 1.2V) and lower quiescent current (4 mA versus 5 mA). These parts are appropriate for applications where lower power dissipation or tighter voltage regulation is beneficial. Both maintain identical output voltage, current rating, and package compatibility.

For Alternative Selection: LP3873ES-5.0/NOPB provides active product status with ROHS3 compliance and includes PSRR specification (73dB ~ 57dB at 120Hz). This part maintains the original voltage dropout specification (1.2V @ 3A) and is suitable for applications requiring documented noise rejection performance.

All substitute parts share identical package type (TO-263 DDPAK-5), operating temperature range (-40°C to 125°C), and protection features (Over Current, Over Temperature, Short Circuit). All substitute parts are ROHS3 compliant and REACH unaffected, addressing regulatory requirements not met by the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can LP3853ES-5.0/NOPB or LP3856ES-5.0/NOPB be used as direct replacements for LP3876ES-5.0?

A: Yes, with circuit considerations. These parts are parametric equivalents sharing identical output voltage (5V), current rating (3A), and package type (TO-263 DDPAK-5). The primary difference is reduced voltage dropout (0.6V versus 1.2V), which may improve efficiency in power-sensitive applications. No PCB layout changes are required due to identical package type.

Q: What is the difference between LP3876ES-5.0 and LP3876ES-5.0/NOPB?

A: LP3876ES-5.0/NOPB is the active production equivalent of the obsolete LP3876ES-5.0. Both maintain identical electrical specifications. The /NOPB suffix indicates lead-free (no lead) and halogen-free packaging, with ROHS3 compliance. This is the recommended substitute for the obsolete part.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the TO-263 (DDPAK-5) package type with identical pin configuration and mechanical dimensions. Direct PCB substitution is possible without layout modifications.

Q: Which substitute part should be selected for lowest power consumption?

A: LP3853ES-5.0/NOPB and LP3856ES-5.0/NOPB both offer the lowest quiescent current (4 mA) and lowest voltage dropout (0.6V @ 3A), resulting in reduced power dissipation compared to the original LP3876ES-5.0 specification (5 mA quiescent, 1.2V dropout).

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (LP3876ES-5.0/NOPB, LP3853ES-5.0/NOPB, LP3856ES-5.0/NOPB, and LP3873ES-5.0/NOPB) are ROHS3 compliant. The original LP3876ES-5.0 is RoHS non-compliant.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the main part and all substitutes, have a Moisture Sensitivity Level (MSL) of 3 with a floor life of 168 hours. Standard moisture control procedures during storage and handling are required.