LP3875ES-2.5/NOPB Equivalent & Substitute Parts

Part Overview

The LP3875ES-2.5/NOPB is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. It delivers a fixed 2.5V output at 1.5A maximum current in a surface-mount TO-263 (DDPAK-5) package. The device is currently in active production status with 900 units in stock.

Substitute parts are identified when design requirements necessitate alternative sourcing due to supply constraints, inventory availability, or specific compliance certifications. The parts listed below maintain electrical and mechanical compatibility with the LP3875ES-2.5/NOPB within the parameters specified for this product category.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.5V
Output Current	1.5A
Input Voltage (Max)	7V
Voltage Dropout (Max)	0.55V @ 1.5A
Quiescent Current (Iq)	5 mA
Operating Temperature Range	-40°C to 125°C
Package Type	TO-263 (DDPAK-5)
Control Features	Enable
Protection Features	Over Current, Over Temperature, Short Circuit
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the LP3875ES-2.5/NOPB are qualified based on the following electrical and mechanical parameters:

Fixed output voltage of 2.5V
Output current capability of 1.5A
Maximum input voltage of 7V
Surface-mount TO-263 (DDPAK-5) package configuration
Enable control feature
Over Current, Over Temperature, and Short Circuit protection
Operating temperature range of -40°C to 125°C
RoHS3 compliance status

All substitute parts listed maintain these core specifications. Variations in secondary parameters such as quiescent current, voltage dropout characteristics, and PSRR performance do not disqualify substitution when the primary electrical and mechanical requirements are met.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Voltage Dropout @ 1.5A	Quiescent Current	Package	Product Status	Inventory
LP3875ES-2.5/NOPB	Texas Instruments	2.5V	1.5A	0.55V	5 mA	TO-263 (DDPAK-5)	Active	900 Pcs
LP3855ES-2.5/NOPB	Texas Instruments	2.5V	1.5A	0.38V	3 mA	TO-263 (DDPAK-5)	Active	699 Pcs
LP3872ES-2.5/NOPB	Texas Instruments	2.5V	1.5A	0.55V	5 mA	TO-263 (DDPAK-5)	Active	2246 Pcs
LP3962ES-2.5/NOPB	National Semiconductor	2.5V	1.5A	0.55V	9 mA	TO-263 (DDPAK-5)	Active	10250 Pcs
LP3965ES-2.5/NOPB	Texas Instruments	2.5V	1.5A	0.55V	9 mA	TO-263 (DDPAK-5)	Active	1043 Pcs
LP3965ES-2.5	Texas Instruments	2.5V	1.5A	0.55V	9 mA	TO-263 (DDPAK-5)	Last Time Buy	2300 Pcs

Engineering Selection Recommendations

Active Production Parts: LP3872ES-2.5/NOPB, LP3855ES-2.5/NOPB, LP3962ES-2.5/NOPB, and LP3965ES-2.5/NOPB are all in active production status and suitable for new designs. LP3872ES-2.5/NOPB offers the highest inventory availability at 2246 units.

Compliance Considerations: LP3875ES-2.5/NOPB, LP3855ES-2.5/NOPB, LP3965ES-2.5/NOPB, and LP3965ES-2.5 maintain ROHS3 compliance with REACH Unaffected status. LP3872ES-2.5/NOPB is ROHS3 compliant with REACH Affected status. LP3962ES-2.5/NOPB compliance information is not provided in the available data.

End-of-Life Consideration: LP3965ES-2.5 is designated as Last Time Buy and should not be selected for new designs requiring long-term supply assurance.

Performance Variations: LP3855ES-2.5/NOPB exhibits superior dropout voltage performance (0.38V) and lower quiescent current (3 mA) compared to the primary part, making it suitable for applications with tighter power budget constraints.

Frequently Asked Questions (FAQ)

Q: Can LP3855ES-2.5/NOPB be used as a direct replacement for LP3875ES-2.5/NOPB?

A: Yes. Both parts share identical output voltage (2.5V), output current (1.5A), input voltage rating (7V), package type (TO-263 DDPAK-5), and protection features. LP3855ES-2.5/NOPB provides improved dropout voltage and lower quiescent current, making it functionally compatible and electrically superior in most applications.

Q: What is the difference between LP3965ES-2.5 and LP3965ES-2.5/NOPB?

A: Both parts are electrically identical with matching output voltage, current, and package specifications. The primary difference is product status: LP3965ES-2.5 is designated Last Time Buy, while LP3965ES-2.5/NOPB remains in active production. For new designs, LP3965ES-2.5/NOPB is the appropriate selection.

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

A: Yes. All listed substitute parts use the TO-263 (DDPAK-5) package with identical pinout and mechanical dimensions, ensuring direct PCB compatibility without layout modifications.

Q: Which substitute part has the best inventory availability?

A: LP3962ES-2.5/NOPB offers the highest inventory level at 10250 units. This part is manufactured by National Semiconductor and maintains all core electrical specifications required for substitution.

Q: Does quiescent current variation affect substitution suitability?

A: Quiescent current differences (ranging from 3 mA to 9 mA across the substitute parts) do not disqualify substitution. Selection should be based on application power budget requirements. LP3855ES-2.5/NOPB offers the lowest quiescent current at 3 mA.

Q: Are there compliance differences between substitute parts?

A: LP3875ES-2.5/NOPB, LP3855ES-2.5/NOPB, LP3965ES-2.5/NOPB, and LP3965ES-2.5 are ROHS3 compliant with REACH Unaffected status. LP3872ES-2.5/NOPB is ROHS3 compliant with REACH Affected status. Compliance requirements for specific applications should be verified before final part selection.

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