MIC5376-2.8YMT-TZ Equivalent & Substitute Parts

Part Overview

The MIC5376-2.8YMT-TZ is a linear voltage regulator IC from Microchip Technology, delivering a fixed 2.8V output at 150mA in a 4-TMLF surface mount package. This device is classified as active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are necessary due to packaging availability, product discontinuation at certain distributors, or obsolescence of specific variants, while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Output Voltage (Fixed)	2.8	V
Output Current	150	mA
Input Voltage (Max)	5.5	V
Voltage Dropout (Max)	0.2	V @ 150mA
Quiescent Current	45	µA
Operating Temperature Range	-40 to 125	°C
Package Type	4-TMLF (1x1)	Surface Mount
Protection Features	Over Current, Over Temperature	—
Control Features	Enable	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Compatibility Requirements:

Fixed output voltage of 2.8V
Output current capability of 150mA or greater
Maximum input voltage of 5.5V or higher
Voltage dropout specification of 0.2V to 0.35V @ rated current
Operating temperature range of -40°C to 125°C
Enable control feature and over-current/over-temperature protection

Mechanical Compatibility Requirements:

Surface mount package type (4-TMLF, 4-XDFN, or 4-DFN variants)
Exposed pad configuration
1x1mm footprint compatibility

Regulatory & Compliance Requirements:

RoHS3 compliance
Moisture sensitivity level 1 (unlimited)
Active or discontinued product status (not obsolete)

Substitute parts are grouped into two categories: Microchip Technology variants (MIC5366, MIC5375, MIC5376 series) with identical electrical specifications and packaging, and cross-manufacturer alternatives (STMicroelectronics LD39020, onsemi NCV8170) with equivalent or superior performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Dropout Voltage	Quiescent Current	Package	Product Status	Packaging Type
MIC5376-2.8YMT-TZ	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	4-TMLF	Active	Tape & Reel
MIC5366-2.8YMT-TZ	Microchip	2.8V	150mA	0.31V @ 150mA	39 µA	4-TMLF	Active	Cut Tape
MIC5375-2.8YMT-TR	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	4-TMLF	Discontinued	Cut Tape
MIC5375-2.8YMT-TZ	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	4-TMLF	Obsolete	—
MIC5376-2.8YMT-TR	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	4-TMLF	Discontinued	Cut Tape
LD39020ADTPU28R	STMicroelectronics	2.8V	200mA	0.35V @ 200mA	40 µA	4-DFN	Active	Cut Tape & Digi-Reel
NCV8170AMX280TCG	onsemi	2.8V	150mA	0.315V @ 150mA	0.9 µA	4-XDFN	Active	Tape & Reel
NCV8170BMX280TCG	onsemi	2.8V	150mA	0.315V @ 150mA	0.9 µA	4-XDFN	Active	Tape & Reel

Engineering Selection Recommendations

Primary Substitutes (Microchip Technology MIC5366-2.8YMT-TZ, MIC5376-2.8YMT-TR): These parts maintain identical electrical specifications and package footprint compatibility with the MIC5376-2.8YMT-TZ. Both are RoHS3 compliant with active or discontinued product status. MIC5366-2.8YMT-TZ offers improved quiescent current performance (39 µA vs. 45 µA) and enhanced PSRR characteristics (80dB ~ 65dB vs. 60dB ~ 50dB), making it suitable for noise-sensitive applications. MIC5376-2.8YMT-TR provides identical electrical performance with cut tape packaging availability.

Secondary Substitutes (LD39020ADTPU28R): The STMicroelectronics LD39020ADTPU28R is an active product with superior output current capability (200mA vs. 150mA) and includes soft start protection. The 4-DFN package footprint differs from the 4-TMLF, requiring PCB layout modification. This part is suitable for applications requiring higher current headroom or enhanced protection features.

Cross-Manufacturer Alternatives (NCV8170AMX280TCG, NCV8170BMX280TCG): The onsemi NCV8170 series provides automotive-grade qualification (AEC-Q100) with significantly reduced quiescent current (0.9 µA vs. 45 µA), beneficial for battery-powered applications. The 4-XDFN package requires PCB redesign. Both variants are active products with full RoHS3 compliance. NCV8170AMX280TCG offers higher inventory availability (33,985 pcs) compared to NCV8170BMX280TCG (783 pcs).

Avoid (MIC5375-2.8YMT-TZ): This variant is classified as obsolete and should not be selected for new designs despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can MIC5366-2.8YMT-TZ directly replace MIC5376-2.8YMT-TZ without PCB modification? A: Yes. Both parts use the 4-TMLF package with identical footprint and pinout. The primary difference is packaging format (cut tape vs. tape & reel) and slightly improved quiescent current in the MIC5366 variant. No PCB layout changes are required.

Q: What is the key difference between MIC5375 and MIC5376 variants? A: Both series deliver identical electrical performance (2.8V, 150mA, 0.2V dropout). The distinction is product lifecycle status: MIC5375 is discontinued or obsolete, while MIC5376 remains active. For new designs, MIC5376 is the recommended choice.

Q: Can LD39020ADTPU28R be used as a drop-in replacement? A: Electrical substitution is valid (2.8V output, 150mA minimum current, compatible input voltage range). However, the 4-DFN package differs from the 4-TMLF, requiring PCB footprint redesign. The higher current rating (200mA) and soft start feature provide additional functionality.

Q: Why do NCV8170 parts have such low quiescent current (0.9 µA)? A: The NCV8170 series incorporates automotive-grade design optimizations for low-power operation. This characteristic makes these parts suitable for battery-powered or always-on applications where standby current is critical.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1), matching the regulatory requirements of the MIC5376-2.8YMT-TZ.

Q: Which substitute offers the best inventory availability? A: NCV8170AMX280TCG provides the highest stock level (33,985 pcs), followed by MIC5366-2.8YMT-TZ (10,595 pcs) and LD39020ADTPU28R (10,100 pcs).

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