LP3892EMR-1.5 Equivalent & Substitute Parts

Part Overview

The LP3892EMR-1.5 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 1.5A maximum current with integrated protection features including over-current, over-temperature, and under-voltage lockout (UVLO). The device operates across the industrial temperature range of -40°C to 125°C and is housed in an 8-PowerSOIC package.

The LP3892EMR-1.5 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	1.5V
Current - Output	1.5A
Voltage - Input (Max)	5.5V
Voltage Dropout (Max)	0.55V @ 1.5A
Current - Quiescent (Iq)	30 µA
Operating Temperature	-40°C ~ 125°C
Package / Case	8-PowerSOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Control Features	Enable
Protection Features	Over Current, Over Temperature, Under Voltage Lockout (UVLO)

Substitute Part Grouping Explanation

Substitute parts for the LP3892EMR-1.5 are identified based on strict electrical and mechanical parameter matching within the Power Management (PMIC) category. The substitution criteria are:

Fixed positive 1.5V output voltage
1.5A maximum output current capability
Maximum input voltage of 5.5V
8-PowerSOIC package form factor (0.154", 3.90mm Width)
Surface mount technology
Enable control feature
Over-current, over-temperature, and under-voltage lockout protection
Industrial temperature range (-40°C to 125°C)

Two substitute parts meet these criteria: LP3892EMR-1.5/NOPB (direct manufacturer equivalent) and LP3882EMR-1.5/NOPB (parametric equivalent with improved dropout voltage performance).

Parameter Comparison

Parameter	LP3892EMR-1.5	LP3892EMR-1.5/NOPB	LP3882EMR-1.5/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active
Output Configuration	Positive	Positive	Positive
Output Type	Fixed	Fixed	Fixed
Voltage - Output (Min/Fixed)	1.5V	1.5V	1.5V
Current - Output	1.5A	1.5A	1.5A
Voltage - Input (Max)	5.5V	5.5V	5.5V
Voltage Dropout (Max)	0.55V @ 1.5A	0.55V @ 1.5A	0.32V @ 1.5A
Current - Quiescent (Iq)	30 µA	30 µA	30 µA
Current - Supply (Max)	8 mA	8 mA	8 mA
PSRR	80dB ~ 65dB (120Hz ~ 1kHz)	80dB ~ 65dB (120Hz ~ 1kHz)	80dB ~ 65dB (120Hz ~ 1kHz)
Control Features	Enable	Enable	Enable
Protection Features	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Over Current, Over Temperature, Under Voltage Lockout (UVLO)	Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-PowerSOIC (0.154", 3.90mm Width)	8-PowerSOIC (0.154", 3.90mm Width)	8-PowerSOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

LP3892EMR-1.5/NOPB is the direct manufacturer equivalent with active product status. This part maintains identical electrical specifications and package form factor, providing a direct replacement path from the obsolete LP3892EMR-1.5. The /NOPB suffix indicates lead-free, halogen-free packaging compliant with ROHS3 standards, addressing modern regulatory requirements.

LP3882EMR-1.5/NOPB is a parametric equivalent offering improved dropout voltage performance (0.32V @ 1.5A versus 0.55V @ 1.5A). This lower dropout characteristic may provide thermal and efficiency benefits in power-constrained applications. The LP3882EMR-1.5/NOPB also carries active product status and ROHS3 compliance.

Both substitute parts are available in active production with confirmed inventory levels, ensuring supply chain continuity. Selection between LP3892EMR-1.5/NOPB and LP3882EMR-1.5/NOPB depends on application-specific requirements regarding dropout voltage performance and thermal management priorities.

Frequently Asked Questions (FAQ)

Q: Can LP3892EMR-1.5/NOPB be used as a direct replacement for LP3892EMR-1.5?

A: Yes. LP3892EMR-1.5/NOPB is the direct manufacturer equivalent with identical electrical specifications, output voltage, current rating, and package form factor. The primary differences are active product status and ROHS3 compliance.

Q: What is the difference between LP3892EMR-1.5/NOPB and LP3882EMR-1.5/NOPB?

A: Both parts deliver 1.5V at 1.5A with identical package and protection features. The key difference is dropout voltage: LP3892EMR-1.5/NOPB specifies 0.55V @ 1.5A, while LP3882EMR-1.5/NOPB specifies 0.32V @ 1.5A. The lower dropout of the LP3882 variant reduces power dissipation and heat generation.

Q: Are the package dimensions identical across all three parts?

A: Yes. All three parts use the 8-PowerSOIC package with 0.154" (3.90mm) width, ensuring mechanical compatibility and identical PCB footprints.

Q: Do the substitute parts meet current regulatory compliance standards?

A: LP3892EMR-1.5/NOPB and LP3882EMR-1.5/NOPB are both ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The original LP3892EMR-1.5 is RoHS non-compliant.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB suffix indicates the part is packaged without lead (Pb) and without halogens, meeting lead-free and halogen-free manufacturing standards required by modern environmental and regulatory frameworks.

Q: Are moisture sensitivity levels the same across all parts?

A: Yes. All three parts carry MSL 3 (168 Hours) rating, indicating identical moisture handling and storage requirements.

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