LP3883ES-1.5/NOPB Equivalent & Substitute Parts

Part Overview

The LP3883ES-1.5/NOPB is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed positive 1.5V output at 3A maximum current in a surface-mount TO-263 (DDPAK-5) package. The device is currently in active production status with 727 units available in new original inventory. Alternative part numbers may be required due to inventory constraints, design revisions, or supply chain considerations while maintaining electrical and mechanical compatibility.

Substiute Parts

LP3883ES-1.5/NOPB

Texas InstrumentsIn Stock: 750LP3883ES-1.5/NOPB Datasheet

Current PartRFQ

LP38843S-1.5/NOPB

Texas InstrumentsIn Stock: 1212LP38843S-1.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3883ES-1.5/NOPB is determined by the following critical parameters:

• Output Voltage (Fixed): Must be 1.5V
• Output Current Capability: Must be 3A
• Input Voltage (Max): Must be 5.5V or greater
• Package / Case: Must be TO-263-6, D2PAK (5 Leads + Tab)
• Output Configuration: Must be Positive Fixed
• Number of Regulators: Must be 1
• Mounting Type: Must be Surface Mount
• Control Features: Must include Enable function
• Protection Features: Must include Over Current, Over Temperature, and Short Circuit protection
• Operating Temperature Range: Must support -40°C ~ 125°C
• RoHS Status: Must be ROHS3 Compliant

The LP38843S-1.5/NOPB meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the LP3883ES-1.5/NOPB and LP38843S-1.5/NOPB are active production devices from Texas Instruments with ROHS3 compliance and REACH unaffected status. The LP38843S-1.5/NOPB offers higher inventory availability (1108 units versus 727 units). The primary electrical difference is the maximum supply current specification (40 mA versus 8 mA) and voltage dropout characteristic (0.5V versus 0.42V at 3A). Both devices maintain identical output voltage, output current capability, input voltage rating, package configuration, and thermal operating range. Selection between these parts should be based on inventory requirements and application-specific tolerance for the noted electrical parameter variations.

Frequently Asked Questions (FAQ)

Q: Can LP38843S-1.5/NOPB replace LP3883ES-1.5/NOPB in existing designs?

A: Yes. Both devices are parametric equivalents with identical output voltage (1.5V), output current (3A), input voltage rating (5.5V max), package type (TO-263-6, D2PAK), and operating temperature range (-40°C ~ 125°C). The LP38843S-1.5/NOPB has a higher maximum supply current specification (40 mA versus 8 mA) and slightly higher voltage dropout (0.5V versus 0.42V at 3A).

Q: Are the packages physically identical?

A: Yes. Both parts use the TO-263-6, D2PAK (5 Leads + Tab) package configuration, ensuring identical PCB footprint and mounting requirements.

Q: Do both parts have the same protection features?

A: Yes. Both the LP3883ES-1.5/NOPB and LP38843S-1.5/NOPB include Over Current, Over Temperature, and Short Circuit protection with Enable control functionality.

Q: What is the difference in voltage dropout between these parts?

A: The LP3883ES-1.5/NOPB has a maximum dropout of 0.42V at 3A, while the LP38843S-1.5/NOPB has a maximum dropout of 0.5V at 3A. This difference should be evaluated based on your minimum input voltage requirement and thermal design constraints.

Q: Are both parts RoHS compliant?

A: Yes. Both the LP3883ES-1.5/NOPB and LP38843S-1.5/NOPB are ROHS3 compliant and REACH unaffected.