LP3882ES-1.5 Equivalent & Substitute Parts

Part Overview

The LP3882ES-1.5 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.5V output at 1.5A in a TO-263 (DDPAK-5) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device provides integrated protection features including over-current, over-temperature, and under-voltage lockout (UVLO) functionality with an enable control feature.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	1.5V
Output Current	1.5A
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.27V @ 1.5A
Quiescent Current	30 µA
Operating Temperature Range	-40°C to 125°C
Package Type	TO-263-6 (DDPAK-5)
Mounting Type	Surface Mount
Protection Features	Over Current, Over Temperature, UVLO
Control Features	Enable

Substitute Part Grouping Explanation

Substitution eligibility for the LP3882ES-1.5 is determined by the following critical parameters:

Output voltage specification (1.5V fixed)
Output current capability (1.5A minimum)
Input voltage rating (5.5V maximum)
Package compatibility (TO-263-6 / DDPAK-5)
Operating temperature range (-40°C to 125°C)
Protection and control feature set (Over Current, Over Temperature, UVLO, Enable)

Three substitute parts meet these core requirements with variations in dropout voltage and supply current specifications. All substitutes maintain identical output voltage, output current, input voltage maximum, operating temperature range, and package configuration.

Parameter Comparison

Parameter	LP3882ES-1.5	LP3882ES-1.5/NOPB	LP38842S-1.5/NOPB	LP3892ES-1.5/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active
Output Voltage	1.5V	1.5V	1.5V	1.5V
Output Current	1.5A	1.5A	1.5A	1.5A
Input Voltage (Max)	5.5V	5.5V	5.5V	5.5V
Voltage Dropout (Max)	0.27V @ 1.5A	0.27V @ 1.5A	0.315V @ 1.5A	0.5V @ 1.5A
Quiescent Current	30 µA	30 µA	30 µA	30 µA
Supply Current (Max)	8 mA	8 mA	40 mA	8 mA
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Package	TO-263-6 (DDPAK-5)	TO-263-6 (DDPAK-5)	TO-263-6 (DDPAK-5)	TO-263-6 (DDPAK-5)
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	Unaffected	Unaffected	Unaffected	Affected

Engineering Selection Recommendations

LP3882ES-1.5/NOPB is the direct equivalent substitute, offering identical electrical performance with active product status and ROHS3 compliance. This part is recommended for applications requiring drop-in replacement with no design modifications.

LP38842S-1.5/NOPB is a parametric equivalent with higher supply current specification (40 mA versus 8 mA) and slightly elevated dropout voltage (0.315V versus 0.27V). This part is suitable for applications where the increased supply current and dropout voltage do not impact system performance. ROHS3 compliance is maintained.

LP3892ES-1.5/NOPB is a parametric equivalent with the highest dropout voltage specification (0.5V @ 1.5A) among available substitutes. This part is suitable for applications with adequate input voltage margin to accommodate the increased dropout. REACH status is affected, requiring compliance verification for specific end-use applications.

All substitute parts maintain active product status, ensuring long-term availability and supply chain continuity compared to the obsolete LP3882ES-1.5.

Frequently Asked Questions (FAQ)

Q: Can LP3882ES-1.5/NOPB directly replace LP3882ES-1.5 in existing designs?

A: Yes. LP3882ES-1.5/NOPB is a direct equivalent with identical electrical specifications, package configuration, and functional features. The primary difference is active product status and ROHS3 compliance.

Q: What is the difference between LP38842S-1.5/NOPB and LP3882ES-1.5/NOPB?

A: Both parts deliver 1.5V at 1.5A with identical quiescent current and operating temperature range. LP38842S-1.5/NOPB has higher maximum supply current (40 mA versus 8 mA) and slightly higher dropout voltage (0.315V versus 0.27V). Selection depends on whether these parameter variations are acceptable for the application.

Q: Is LP3892ES-1.5/NOPB compatible with the original LP3882ES-1.5 design?

A: LP3892ES-1.5/NOPB maintains the same output voltage, output current, input voltage rating, and package type. However, the 0.5V dropout voltage is significantly higher than the original 0.27V specification. Compatibility requires verification that input voltage margin is sufficient to maintain regulated output under all load conditions.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the TO-263-6 (DDPAK-5) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts.

Q: What compliance considerations apply to these substitutes?

A: LP3882ES-1.5/NOPB and LP38842S-1.5/NOPB are ROHS3 compliant with REACH unaffected status. LP3892ES-1.5/NOPB is ROHS3 compliant with REACH affected status, requiring compliance verification for specific applications and end markets.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message