Equivalent & Substitute Parts for LP3876ESX-5.0/NOPB

Part Overview

The LP3876ESX-5.0/NOPB, manufactured by Texas Instruments, is a linear voltage regulator IC designed for power management (PMIC) applications. It provides a fixed 5V positive output at up to 3A in a TO-263 (DDPAK-5) surface-mount package. Listed as obsolete, securing alternative models with matching electrical and mechanical parameters is essential for maintaining design continuity, inventory security, and compliance in legacy systems utilizing this device.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Number of Regulators	1
Voltage - Input (Max)	7V
Voltage - Output (Min/Fixed)	5V
Voltage Dropout (Max)	1.2V @ 3A
Current - Output	3A
Current - Quiescent (Iq)	5 mA
Current - Supply (Max)	15 mA
Control Features	Enable
Protection Features	Over Current, Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package	TO-263 (DDPAK-5)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution is based strictly on exact matching of the following key parameters for the power management IC category: output configuration (positive), fixed 5V output, regulator count (1), maximum input voltage (7V), maximum output current (3A or greater for direct replacement), control and protection features, operating temperature range (-40°C ~ 125°C), mounting type and package compatibility, as well as compliance status (RoHS3, REACH). Only parts meeting all mandatory criteria are listed.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Configuration	Output Type	Number of Regulators	Voltage - Input (Max)	Voltage - Output (Min/Fixed)	Voltage Dropout (Max)	Current - Output	Current - Quiescent (Iq)	Control Features	Protection Features	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)	REACH Status
LP3876ESX-5.0/NOPB	Texas Instruments	Obsolete	Positive	Fixed	1	7V	5V	1.2V @ 3A	3A	5 mA	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)	ROHS3 Compliant	3 (168 Hours)	REACH Unaffected
LP3853ESX-5.0/NOPB	Texas Instruments	Active	Positive	Fixed	1	7V	5V	0.6V @ 3A	3A	4 mA	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)	ROHS3 Compliant	3 (168 Hours)	REACH Unaffected
LP3856ESX-5.0/NOPB	Texas Instruments	Active	Positive	Fixed	1	7V	5V	0.6V @ 3A	3A	4 mA	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)	ROHS3 Compliant	3 (168 Hours)	REACH Unaffected
LP3873ESX-5.0/NOPB	Texas Instruments	Active	Positive	Fixed	1	7V	5V	1.2V @ 3A	3A	9 mA	Enable	Over Current, Over Temperature, Short Circuit	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	TO-263 (DDPAK-5)	ROHS3 Compliant	3 (168 Hours)	REACH Unaffected
MCP1827-5002E/ET	Microchip Technology	Active	Positive	Fixed	1	6V	5V	0.6V @ 1.5A	1.5A	220 μA	Enable, Power Good	Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)	-40°C ~ 125°C	Surface Mount	TO-263-6, D2PAK (5 Leads + Tab), TO-263BA	DDPAK-5	ROHS3 Compliant	1 (Unlimited)	REACH Unaffected

Engineering Selection Recommendations

Select substitute parts strictly based on product status, compliance, and provided certifications. All listed substitute parts are RoHS3 compliant and REACH unaffected. For applications subject to Moisture Sensitivity Level (MSL) requirements, note that the LP3876ESX-5.0/NOPB, LP3853ESX-5.0/NOPB, LP3856ESX-5.0/NOPB, and LP3873ESX-5.0/NOPB have an MSL of 3 (168 Hours), while MCP1827-5002E/ET is rated MSL 1 (Unlimited). Ensure that the substitute selected has an active product status for long-term availability.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for selecting a substitute for the LP3876ESX-5.0/NOPB?
A1: The primary criteria include matching output configuration (positive), fixed 5V output, regulator count (1), maximum input voltage, output current capability, control and protection features, operating temperature range, mounting type, package, RoHS and REACH compliance, and MSL.

Q2: How important is package compatibility when selecting a substitute?
A2: Package compatibility is essential to ensure physical fit and ease of PCB replacement. All listed substitutes use the TO-263 (DDPAK-5) or equivalent mechanical outline compatible with TO-263-6, D2PAK (5 Leads + Tab), TO-263BA.

Q3: Are all listed substitutes current-production (active) parts?
A3: All substitute parts except LP3876ESX-5.0/NOPB are active, ensuring ongoing availability for production requirements.

Q4: Do RoHS and REACH statuses differ among substitutes?
A4: All listed parametric equivalents are ROHS3 compliant and REACH unaffected.

Q5: What should be considered regarding Moisture Sensitivity Level (MSL)?
A5: The original and three substitutes have an MSL of 3 (168 Hours). MCP1827-5002E/ET provides an MSL of 1 (Unlimited), which may be advantageous in certain manufacturing environments.

Q6: Is the output current identical for all substitutes?
A6: LP3853ESX-5.0/NOPB, LP3856ESX-5.0/NOPB, and LP3873ESX-5.0/NOPB have a 3A output rating matching the original. MCP1827-5002E/ET provides 1.5A maximum output current.

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