MIC5375-2.8YMT-TZ Equivalent & Substitute Parts

Part Overview

The MIC5375-2.8YMT-TZ is a linear voltage regulator IC from Microchip Technology designed for positive fixed 2.8V output at 150mA in a 4-TMLF® surface mount package. This part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements. The device provides regulated power management with integrated over-current and over-temperature protection, suitable for applications requiring low-dropout regulation in compact form factors.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	2.8V
Output Current	150mA
Input Voltage (Max)	5.5V
Voltage Dropout (Max)	0.2V @ 150mA
Quiescent Current	45 µA
PSRR	60dB ~ 50dB (1kHz ~ 10kHz)
Operating Temperature Range	-40°C ~ 125°C
Package	4-TMLF® (1x1)
Protection Features	Over Current, Over Temperature
Control Features	Enable

Substitute Part Grouping Explanation

Substitution for the MIC5375-2.8YMT-TZ is determined by the following critical parameters:

Output voltage: 2.8V fixed
Output current capability: 150mA
Maximum input voltage: 5.5V
Voltage dropout: ≤0.2V @ 150mA (primary criterion for direct substitution)
Quiescent current: 45 µA (primary criterion for direct substitution)
PSRR: 60dB ~ 50dB (1kHz ~ 10kHz) (primary criterion for direct substitution)
Package compatibility: 4-TMLF® or equivalent footprint
Protection features: Over Current and Over Temperature required
Operating temperature: -40°C ~ 125°C

Substitute parts are grouped into two categories:

Direct Manufacturer Substitutes (Microchip Technology): Parts with identical electrical specifications and package compatibility, differing only in packaging format (Tape & Reel vs. Cut Tape).

Parametric Equivalents: Parts meeting all critical electrical parameters with minor variations in dropout voltage, quiescent current, or PSRR that remain within acceptable operating margins. These include both Microchip variants and onsemi alternatives.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Dropout (Max)	Quiescent Current	PSRR	Package	Status
MIC5375-2.8YMT-TZ	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	60dB ~ 50dB	4-TMLF®	Obsolete
MIC5376-2.8YMT-TZ	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	60dB ~ 50dB	4-TMLF®	Active
MIC5365-2.8YMT-TZ	Microchip	2.8V	150mA	0.31V @ 150mA	39 µA	80dB ~ 65dB	4-TMLF®	Active
MIC5366-2.8YMT-TZ	Microchip	2.8V	150mA	0.31V @ 150mA	39 µA	80dB ~ 65dB	4-TMLF®	Active
MIC5375-2.8YMT-TR	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	60dB ~ 50dB	4-TMLF®	Discontinued
MIC5376-2.8YMT-TR	Microchip	2.8V	150mA	0.2V @ 150mA	45 µA	60dB ~ 50dB	4-TMLF®	Discontinued
NCV8170AMX280TCG	onsemi	2.8V	150mA	0.315V @ 150mA	0.9 µA	40dB	4-XDFN	Active
NCV8170BMX280TCG	onsemi	2.8V	150mA	0.315V @ 150mA	0.9 µA	40dB	4-XDFN	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement: MIC5376-2.8YMT-TZ is the primary active substitute with identical electrical specifications and package footprint. This part maintains the same dropout voltage (0.2V @ 150mA), quiescent current (45 µA), and PSRR characteristics as the obsolete MIC5375-2.8YMT-TZ.

For Active Production with Enhanced Performance: MIC5365-2.8YMT-TZ and MIC5366-2.8YMT-TZ offer improved PSRR (80dB ~ 65dB vs. 60dB ~ 50dB) and lower quiescent current (39 µA vs. 45 µA), with a minor increase in dropout voltage (0.31V vs. 0.2V @ 150mA). These are suitable when improved noise performance is beneficial and the additional dropout margin is acceptable.

For Automotive-Grade Applications: NCV8170AMX280TCG and NCV8170BMX280TCG from onsemi provide AEC-Q100 automotive qualification with significantly lower quiescent current (0.9 µA). These parts use a 4-XDFN package requiring PCB layout verification for footprint compatibility. The dropout voltage (0.315V @ 150mA) and PSRR (40dB @ 1kHz) differ from the original specification.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and identical protection features (Over Current, Over Temperature).

Frequently Asked Questions (FAQ)

Q: Can MIC5376-2.8YMT-TZ directly replace MIC5375-2.8YMT-TZ? A: Yes. MIC5376-2.8YMT-TZ is a direct electrical and mechanical substitute with identical output voltage (2.8V), current rating (150mA), dropout voltage (0.2V @ 150mA), quiescent current (45 µA), and PSRR specifications. Both use the 4-TMLF® package with the same pinout and footprint.

Q: What is the difference between MIC5365-2.8YMT-TZ and MIC5375-2.8YMT-TZ? A: MIC5365-2.8YMT-TZ has improved PSRR (80dB ~ 65dB vs. 60dB ~ 50dB) and lower quiescent current (39 µA vs. 45 µA), but exhibits higher dropout voltage (0.31V vs. 0.2V @ 150mA). The package and output current remain identical. Selection depends on whether improved noise rejection or lower dropout is prioritized for the application.

Q: Are the onsemi NCV8170 parts compatible with the original MIC5375 footprint? A: The NCV8170 series uses a 4-XDFN package instead of 4-TMLF®. While both are 4-pin surface mount packages with similar dimensions, PCB layout verification is required to confirm footprint compatibility. The pinout and electrical function are equivalent.

Q: What is the significance of the packaging suffix (TZ vs. TR)? A: TZ indicates Tape & Reel packaging, while TR indicates Cut Tape packaging. Both contain identical components; the difference is in the delivery format. Selection depends on assembly line requirements and order quantities.

Q: Can I use MIC5365-2.8YMT-TZ if my application requires the lowest possible dropout voltage? A: No. MIC5365-2.8YMT-TZ has a higher dropout voltage (0.31V @ 150mA) compared to MIC5375-2.8YMT-TZ (0.2V @ 150mA). For applications requiring the original 0.2V dropout specification, use MIC5376-2.8YMT-TZ or MIC5375-2.8YMT-TR.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are RoHS3 compliant with MSL Level 1 moisture sensitivity rating, matching the original MIC5375-2.8YMT-TZ specifications.

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