MIC2950-06YZ Equivalent & Substitute Parts

Part Overview

The MIC2950-06YZ is a linear voltage regulator IC from Microchip Technology, classified as a positive adjustable (fixed) output power management IC in TO-92-3 packaging. This device delivers 150mA output current with a maximum input voltage of 30V and operates across the industrial temperature range of -40°C to 125°C. The product is currently obsolete, making identification of functionally equivalent alternatives essential for design continuity and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	MIC2950-06YZ
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Package / Case	TO-92-3 (TO-226AA)
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	1.24V (5V)
Voltage - Output (Max)	29V
Current - Output	150mA
Voltage Dropout (Max)	0.6V @ 150mA
Operating Temperature	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MIC2950-06YZ is determined by the following critical parameters:

Primary Substitution Criteria:

Package / Case: TO-92-3 (TO-226AA) mechanical compatibility
Output Configuration: Positive output only
Voltage - Input (Max): 30V minimum rating
Operating Temperature: -40°C ~ 125°C range
Current - Output: 150mA or higher capability
Voltage Dropout: 0.6V or lower @ 150mA
Protection Features: Over Current and Over Temperature minimum

Substitution Logic: The MIC2950-06YZ is an adjustable/fixed output regulator with 150mA capability. Direct substitutes must maintain the same TO-92-3 package form factor, support 30V input maximum, and deliver at least 150mA output current. Devices with fixed 5V output and 100mA capability represent functional alternatives for applications requiring 5V regulation at reduced current levels. Devices with 150mA output capability at matching or superior dropout voltage provide direct pin-compatible replacements.

Parameter Comparison

Parameter	MIC2950-06YZ	LP2950ACZ-5.0/LFT7	LP2950CZ-5.0/LFT1	LP2950CZ-5.0/LFT3	LP2950CZ-5.0/LFT7	LP2950CZ-5.0G	LT1121CZ-5#PBF	TL750L05CLP
Manufacturer	Microchip Technology	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	onsemi	Analog Devices Inc.	Texas Instruments
Package / Case	TO-92-3	TO-92-3	TO-92-3	TO-92-3	TO-92-3	TO-92-3	TO-92-3	TO-92-3
Output Configuration	Positive	Positive	Positive	Positive	Positive	Positive	Positive	Positive
Output Type	Adjustable (Fixed)	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed
Voltage - Input (Max)	30V	30V	30V	30V	30V	30V	30V	26V
Voltage - Output (Min/Fixed)	1.24V (5V)	5V	5V	5V	5V	5V	5V	5V
Current - Output	150mA	100mA	100mA	100mA	100mA	100mA	150mA	150mA
Voltage Dropout (Max)	0.6V @ 150mA	0.6V @ 100mA	0.6V @ 100mA	0.6V @ 100mA	0.6V @ 100mA	0.45V @ 100mA	0.7V @ 150mA	0.6V @ 150mA
Current - Quiescent (Iq)	300 µA	120 µA	120 µA	120 µA	120 µA	120 µA	50 µA	2 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	0°C ~ 125°C	0°C ~ 125°C
Protection Features	Over Current, Over Temperature, Reverse Polarity	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature	Over Temperature, Reverse Polarity	Over Current, Over Temperature, Over Voltage, Reverse Polarity
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Pin-Compatible Replacements (150mA Output):

LT1121CZ-5#PBF and TL750L05CLP are direct functional replacements for the MIC2950-06YZ. Both devices deliver 150mA output current in TO-92-3 packaging with 30V input rating and -40°C to 125°C operating range. LT1121CZ-5#PBF offers superior quiescent current (50 µA) and includes PSRR specification (58dB @ 120Hz). TL750L05CLP provides enhanced protection features including Over Voltage protection and superior PSRR (65dB @ 120Hz), though input voltage maximum is limited to 26V. Both are ROHS3 compliant and currently in active production status.

Functional Alternatives (100mA Output):

LP2950 series devices (LP2950ACZ-5.0/LFT7, LP2950CZ-5.0/LFT1, LP2950CZ-5.0/LFT3, LP2950CZ-5.0/LFT7, LP2950CZ-5.0G, LP2950ACZ-5.0/NOPB, LP2950CZ-5.0/NOPB) provide fixed 5V output at 100mA in TO-92-3 packaging. These devices are suitable for applications where output current requirement does not exceed 100mA. All LP2950 variants maintain 30V input rating, -40°C to 125°C operating range, and ROHS3 compliance. onsemi variants (LP2950ACZ-5.0G, LP2950CZ-5.0G) feature reduced dropout voltage (0.45V @ 100mA) compared to Texas Instruments variants (0.6V @ 100mA).

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and REACH unaffected status matching the original MIC2950-06YZ. All recommended substitutes are currently in active production with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can LP2950 series devices (100mA) directly replace the MIC2950-06YZ (150mA)?

A: LP2950 series devices are functionally compatible for applications requiring 5V fixed output at 100mA or less. If your application requires the full 150mA output capability of the MIC2950-06YZ, use LT1121CZ-5#PBF or TL750L05CLP instead. Both deliver 150mA in identical TO-92-3 packaging.

Q: What is the difference between Texas Instruments and onsemi LP2950 variants?

A: Both manufacturers produce LP2950 devices with identical electrical specifications except dropout voltage. onsemi variants (LP2950ACZ-5.0G, LP2950CZ-5.0G) specify 0.45V dropout @ 100mA, while Texas Instruments variants specify 0.6V dropout @ 100mA. Quiescent current and protection features remain equivalent across manufacturers.

Q: Are there temperature range limitations with substitute parts?

A: LT1121CZ-5#PBF and TL750L05CLP operate from 0°C to 125°C, which is narrower than the MIC2950-06YZ range of -40°C to 125°C. For applications requiring -40°C operation, verify that substitute device temperature range meets system requirements. LP2950 series devices maintain the full -40°C to 125°C range.

Q: What is the input voltage limitation of TL750L05CLP?

A: TL750L05CLP specifies maximum input voltage of 26V, compared to 30V for the MIC2950-06YZ and other substitutes. For applications with input voltages between 26V and 30V, use LT1121CZ-5#PBF or LP2950 series devices instead.

Q: Do all substitute parts include reverse polarity protection?

A: Reverse polarity protection is included in MIC2950-06YZ, LT1121CZ-5#PBF, and TL750L05CLP. LP2950 series devices do not specify reverse polarity protection. Verify protection requirements for your application before selection.

Q: What packaging options are available for these substitutes?

A: All substitute parts are available in TO-92-3 (TO-226AA) through-hole packaging, maintaining mechanical compatibility with the MIC2950-06YZ. Packaging variants (Cut Tape, Bulk, Bag) differ only in supply format and do not affect electrical performance or pin configuration.

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