LP3875ES-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LP3875ES-5.0/NOPB is a linear voltage regulator IC from Texas Instruments, delivering a fixed 5V output at 1.5A in a TO-263 (DDPAK-5) surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part provides positive fixed output configuration with integrated protection features including over-current, over-temperature, and short-circuit protection, suitable for applications requiring stable 5V regulation in compact form factors.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Positive Fixed
Voltage Output (Fixed)	5V
Current Output	1.5A
Voltage Input (Max)	7V
Voltage Dropout (Max)	0.55V @ 1.5A
Operating Temperature	-40°C ~ 125°C
Package / Case	TO-263-6, D2PAK (5 Leads + Tab)
Mounting Type	Surface Mount
Protection Features	Over Current, Over Temperature, Short Circuit
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the LP3875ES-5.0/NOPB are qualified based on the following critical parameters:

Fixed 5V output voltage
1.5A output current capability
Maximum input voltage of 6V or higher
TO-263 (DDPAK-5) package compatibility
Surface mount configuration
Operating temperature range of -40°C to 125°C
RoHS3 compliance
Integrated protection features (minimum: over-temperature and short-circuit)

The LP3852ES-5.0/NOPB, LP3855ES-5.0/NOPB, and LP3872ES-5.0/NOPB are parametric equivalents from Texas Instruments with active product status. The MCP1827-5002E/ET from Microchip Technology is a manufacturer-recommended alternative that meets all critical electrical and mechanical parameters while offering enhanced features such as Power Good output and Under Voltage Lockout protection.

Parameter Comparison

Parameter	LP3875ES-5.0/NOPB	LP3852ES-5.0/NOPB	LP3855ES-5.0/NOPB	LP3872ES-5.0/NOPB	MCP1827-5002E/ET
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Microchip Technology
Product Status	Obsolete	Active	Active	Active	Active
Output Voltage (Fixed)	5V	5V	5V	5V	5V
Output Current	1.5A	1.5A	1.5A	1.5A	1.5A
Input Voltage (Max)	7V	7V	7V	7V	6V
Dropout Voltage (Max)	0.55V @ 1.5A	0.38V @ 1.5A	0.38V @ 1.5A	0.55V @ 1.5A	0.6V @ 1.5A
Quiescent Current	5 mA	3 mA	3 mA	5 mA	220 µA
Package	TO-263 (DDPAK-5)	TO-263 (DDPAK-5)	TO-263 (DDPAK-5)	TO-263 (DDPAK-5)	DDPAK-5
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Control Features	Enable	Enable	Enable	Enable	Enable, Power Good
Protection Features	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)

Engineering Selection Recommendations

For direct replacement of the obsolete LP3875ES-5.0/NOPB, the LP3872ES-5.0/NOPB is the preferred choice among Texas Instruments alternatives, maintaining identical electrical characteristics including 0.55V dropout voltage and 5 mA quiescent current, with active product status and full RoHS3 compliance.

The LP3852ES-5.0/NOPB and LP3855ES-5.0/NOPB offer improved performance with reduced dropout voltage (0.38V) and lower quiescent current (3 mA), both active products with RoHS3 compliance. These are suitable when lower power dissipation is beneficial.

The MCP1827-5002E/ET from Microchip Technology is a manufacturer-recommended cross-platform alternative with active product status and RoHS3 compliance. This device features significantly lower quiescent current (220 µA), additional Power Good output for system monitoring, and Under Voltage Lockout protection. The maximum input voltage specification of 6V requires verification against application requirements where the original part specifies 7V maximum input.

All substitute parts maintain identical 1.5A output current, 5V fixed output voltage, TO-263 (DDPAK-5) package compatibility, and -40°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can LP3852ES-5.0/NOPB or LP3855ES-5.0/NOPB be used as direct replacements for LP3875ES-5.0/NOPB?

A: Yes. Both parts meet all critical substitution parameters: 5V fixed output, 1.5A current capability, 7V maximum input voltage, TO-263 (DDPAK-5) package, and identical operating temperature range. The reduced dropout voltage (0.38V vs. 0.55V) and lower quiescent current (3 mA vs. 5 mA) represent performance improvements with no functional incompatibility.

Q: What is the difference between LP3872ES-5.0/NOPB and LP3875ES-5.0/NOPB?

A: The LP3872ES-5.0/NOPB is functionally identical to the LP3875ES-5.0/NOPB with matching electrical specifications (0.55V dropout, 5 mA quiescent current, 1.5A output). The primary distinction is product status: LP3872ES-5.0/NOPB is active while LP3875ES-5.0/NOPB is obsolete. Both use the same TO-263 (DDPAK-5) package.

Q: Is MCP1827-5002E/ET compatible with applications designed for LP3875ES-5.0/NOPB?

A: The MCP1827-5002E/ET is electrically compatible for 5V, 1.5A applications in the same TO-263 (DDPAK-5) package. The maximum input voltage specification differs (6V vs. 7V), requiring verification that input voltage in the application does not exceed 6V. The MCP1827-5002E/ET includes additional features (Power Good output, UVLO protection) and significantly lower quiescent current (220 µA), making it suitable for power-sensitive applications.

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

A: Yes. All substitute parts use the TO-263-6 (D2PAK with 5 Leads + Tab) package, ensuring identical PCB footprint and thermal characteristics. Pin-to-pin compatibility is maintained across all listed alternatives.

Q: What compliance certifications apply to these parts?

A: All listed parts are RoHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is 3 (168 Hours) for all Texas Instruments parts and MSL 1 (Unlimited) for the Microchip Technology part.

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