LP3853ES-5.0 Equivalent & Substitute Parts

Part Overview

The LP3853ES-5.0 is a linear voltage regulator IC from Texas Instruments, delivering positive fixed 5V output at 3A in a TO-263 (DDPAK-5) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device provides integrated protection features including over-current, over-temperature, and short-circuit protection, with an enable control feature for power management applications.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	3A
Input Voltage (Max)	7V
Voltage Dropout (Max)	0.6V @ 3A
Quiescent Current (Iq)	4 mA
Operating Temperature Range	-40°C to 125°C
Package Type	TO-263 (DDPAK-5)
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitute parts for the LP3853ES-5.0 are categorized based on electrical and mechanical compatibility within the following criteria:

Critical Matching Parameters:

Output voltage: 5V fixed
Output current capability: 3A
Package type: TO-263 (DDPAK-5) surface mount
Operating temperature range: -40°C to 125°C
Control features: Enable function
Protection features: Over-current and over-temperature protection

Substitution Categories:

Direct Equivalent (Identical Specifications): LP3853ES-5.0/NOPB and LP3856ES-5.0/NOPB maintain all critical electrical parameters including 0.6V dropout voltage at 3A and 4-5 mA quiescent current.

Parametric Equivalent (Minor Variations): LP3873ES-5.0/NOPB and LP3876ES-5.0/NOPB feature increased dropout voltage (1.2V @ 3A) and higher quiescent current (5-9 mA), suitable for applications with relaxed dropout requirements.

Cross-Manufacturer Alternatives: MIC29301-5.0WU and MIC29301-5.0WU-TR (Microchip Technology) and SPX29301T5-L-5-0/TR (MaxLinear, Inc.) provide equivalent 5V/3A output with identical package footprint but varying input voltage ratings and protection feature sets.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Dropout @ 3A	Iq (mA)	Input Max	Status	RoHS
LP3853ES-5.0	Texas Instruments	5V	3A	0.6V	4	7V	Obsolete	Non-compliant
LP3853ES-5.0/NOPB	Texas Instruments	5V	3A	0.6V	4	7V	Active	ROHS3 Compliant
LP3856ES-5.0/NOPB	Texas Instruments	5V	3A	0.6V	4	7V	Active	ROHS3 Compliant
LP3873ES-5.0/NOPB	Texas Instruments	5V	3A	1.2V	9	7V	Active	ROHS3 Compliant
LP3876ES-5.0/NOPB	Texas Instruments	5V	3A	1.2V	5	7V	Active	ROHS3 Compliant
MIC29301-5.0WU	Microchip Technology	5V	3A	0.6V	Not specified	26V	Active	ROHS3 Compliant
MIC29301-5.0WU-TR	Microchip Technology	5V	3A	0.6V	Not specified	26V	Active	ROHS3 Compliant
SPX29301T5-L-5-0/TR	MaxLinear, Inc.	5V	3A	0.8V	Not specified	16V	Active	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement: LP3853ES-5.0/NOPB is the primary direct equivalent, offering identical electrical specifications with active product status and ROHS3 compliance. LP3856ES-5.0/NOPB provides an alternative from the same manufacturer with matching performance characteristics.

For Dropout-Tolerant Applications: LP3873ES-5.0/NOPB and LP3876ES-5.0/NOPB are suitable when circuit design accommodates 1.2V dropout voltage and higher quiescent current. Both maintain active status and full RoHS3 compliance.

For Extended Input Voltage Range: MIC29301-5.0WU and MIC29301-5.0WU-TR (Microchip Technology) support input voltages up to 26V compared to the 7V maximum of the original part, with identical 0.6V dropout performance. SPX29301T5-L-5-0/TR (MaxLinear, Inc.) supports 16V input with 0.8V dropout, offering intermediate input voltage capability.

Compliance Considerations: All active substitute parts carry ROHS3 or RoHS compliance certification, addressing regulatory requirements for the obsolete original part. Packaging variants (Tube, Cut Tape, Tape & Reel) are available to match procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can LP3853ES-5.0/NOPB directly replace the obsolete LP3853ES-5.0?

A: Yes. LP3853ES-5.0/NOPB is electrically and mechanically identical, with the primary difference being active product status and ROHS3 compliance certification. Pin configuration, package footprint, and electrical performance are equivalent.

Q: What is the difference between LP3856ES-5.0/NOPB and LP3873ES-5.0/NOPB?

A: Both are Texas Instruments 5V/3A regulators in TO-263 packaging. LP3856ES-5.0/NOPB maintains 0.6V dropout voltage and 4 mA quiescent current. LP3873ES-5.0/NOPB features 1.2V dropout voltage and 9 mA quiescent current. Selection depends on circuit tolerance for higher dropout and standby current consumption.

Q: Why would I choose a Microchip or MaxLinear part over Texas Instruments?

A: Cross-manufacturer alternatives provide different input voltage ratings and protection feature sets. MIC29301-5.0WU supports 26V input versus 7V for Texas Instruments parts, enabling use in higher-voltage supply circuits. SPX29301T5-L-5-0/TR offers 16V input capability with intermediate dropout characteristics.

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

A: Yes. All substitute parts use TO-263 (DDPAK-5) surface mount package with identical pinout and footprint. Packaging formats differ (Tube, Cut Tape, Tape & Reel) to accommodate different procurement and assembly workflows.

Q: What protection features are common across all substitutes?

A: Over-current and over-temperature protection are present in all parts. MIC29301 variants add reverse polarity and transient voltage protection. SPX29301 includes reverse polarity and transient voltage protection but does not specify over-temperature protection in the provided data.

Q: Is the enable control feature available on all substitutes?

A: Enable control is specified for all Texas Instruments parts (LP3853, LP3856, LP3873, LP3876 series). Enable functionality is specified for MIC29301 and SPX29301 variants, maintaining power management capability across all substitutes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message