MIC2950-06BZ Equivalent & Substitute Parts

Part Overview

The MIC2950-06BZ 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 discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	MIC2950-06BZ
Manufacturer	Microchip Technology
Category	Power Management (PMIC)
Package / Case	TO-92-3 (TO-226-3)
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Voltage - Input (Max)	30V
Voltage - Output (Min/Fixed)	1.24V (5V)
Voltage - Output (Max)	29V
Voltage Dropout (Max)	0.6V @ 150mA
Current - Output	150mA
Current - Quiescent (Iq)	300 µA
Operating Temperature	-40°C ~ 125°C
Mounting Type	Through Hole
Protection Features	Over Current, Over Temperature, Reverse Polarity
Product Status	Discontinued at DiGi Electronics

Substitute Part Grouping Explanation

Substitution for the MIC2950-06BZ is determined by the following critical parameters:

Package / Case: TO-92-3 (TO-226-3) — mechanical and pin compatibility requirement
Output Configuration: Positive output only
Voltage - Input (Max): 30V maximum input voltage tolerance
Voltage Dropout (Max): 0.6V @ 150mA or lower
Current - Output: 150mA or higher
Operating Temperature: -40°C ~ 125°C range
Mounting Type: Through Hole
Protection Features: Over Current and Over Temperature minimum

The substitute parts listed below meet these core electrical and mechanical parameters. All substitute parts are available in active product status with current inventory, ensuring procurement viability. Voltage output specifications vary among substitutes (fixed 5V outputs versus adjustable ranges), which determines application suitability based on circuit requirements.

Parameter Comparison

Parameter	MIC2950-06BZ	LP2950ACZ-5.0/LFT7	LP2950CZ-5.0/LFT1	LP2950CZ-5.0/LFT3	LP2950CZ-5.0/LFT7	LP2950CZ-5.0/NOPB	LP2950CZ-5.0G	TL750L05CLP
Manufacturer	Microchip Technology	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	onsemi	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
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
Voltage Dropout (Max)	0.6V @ 150mA	0.6V @ 100mA	0.6V @ 100mA	0.6V @ 100mA	0.6V @ 100mA	0.6V @ 100mA	0.45V @ 100mA	0.6V @ 150mA
Current - Output	150mA	100mA	100mA	100mA	100mA	100mA	100mA	150mA
Current - Quiescent (Iq)	300 µA	120 µA	120 µA	120 µA	120 µA	120 µA	120 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	-40°C ~ 125°C	0°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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 Current, Over Temperature	Over Current, Over Temperature, Over Voltage, Reverse Polarity
Product Status	Discontinued	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Vendor Undefined	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: TL750L05CLP

The TL750L05CLP from Texas Instruments is the closest functional equivalent to the MIC2950-06BZ. It maintains the 150mA output current specification, 0.6V dropout voltage at 150mA, and identical TO-92-3 packaging. The device is ROHS3 compliant and carries active product status with 6143 units in stock. The maximum input voltage is 26V (versus 30V for the original), which is acceptable for most 5V regulated applications. Operating temperature range is 0°C to 125°C, which covers the upper industrial range but does not extend to -40°C. This substitute is suitable for applications where the lower temperature limit is not critical.

Secondary Substitutes: LP2950CZ-5.0/LFT7, LP2950ACZ-5.0/LFT7, LP2950CZ-5.0/LFT1, LP2950CZ-5.0/LFT3

These Texas Instruments LP2950 variants provide fixed 5V output in TO-92-3 packaging with full -40°C to 125°C operating temperature range and 30V maximum input voltage. All are ROHS3 compliant with active product status. The trade-off is reduced output current (100mA versus 150mA). These substitutes are suitable for applications where output current requirements do not exceed 100mA and full industrial temperature range is required.

Tertiary Substitute: LP2950CZ-5.0G

The onsemi LP2950CZ-5.0G offers 100mA output current, 30V input voltage, and full -40°C to 125°C operating temperature. It features improved dropout voltage (0.45V @ 100mA) and is ROHS3 compliant with active status. This option provides an alternative source for LP2950-based designs.

Compliance Consideration:

All active substitute parts are ROHS3 compliant, whereas the original MIC2950-06BZ is non-compliant. This is a significant advantage for new designs and procurement requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use LP2950 variants as direct replacements for the MIC2950-06BZ?

A: LP2950 variants are pin-compatible in TO-92-3 packaging and provide the same positive 5V regulated output. However, they are limited to 100mA output current versus the original 150mA specification. Use LP2950 substitutes only if your circuit draws 100mA or less. For applications requiring 150mA, use the TL750L05CLP.

Q: What is the difference between LP2950CZ-5.0/LFT1, LP2950CZ-5.0/LFT3, and LP2950CZ-5.0/LFT7?

A: These part numbers represent different tape and reel packaging configurations (LFT1, LFT3, LFT7) for the same die and electrical specifications. All three are functionally identical with 100mA output, 5V fixed output, and -40°C to 125°C operating range. Selection depends on packaging and quantity requirements for your procurement process.

Q: Why does TL750L05CLP have a lower maximum input voltage (26V vs. 30V)?

A: The TL750L05CLP is specified for 26V maximum input, which is still suitable for standard 5V to 24V supply applications. If your circuit requires operation above 26V input, use LP2950 variants or verify that your actual input voltage remains below 26V.

Q: Is the TL750L05CLP suitable for -40°C applications?

A: No. The TL750L05CLP operates from 0°C to 125°C. If your application requires operation at -40°C, use LP2950 variants (LP2950CZ-5.0/LFT7, LP2950ACZ-5.0/LFT7, LP2950CZ-5.0/LFT1, or LP2950CZ-5.0/LFT3), which support the full -40°C to 125°C range.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts listed are ROHS3 compliant. The original MIC2950-06BZ is RoHS non-compliant, making the substitutes advantageous for new designs requiring regulatory compliance.

Q: What is the quiescent current difference between the original and substitutes?

A: The MIC2950-06BZ has 300 µA quiescent current. LP2950 variants have 120 µA (lower), and TL750L05CLP has 2 mA (higher). For battery-powered or ultra-low-power applications, LP2950 variants are preferred. For standard line-powered applications, the difference is negligible.

Q: Can I use LP2950CZ-5.0/NOPB as a substitute?

A: Yes. The LP2950CZ-5.0/NOPB is functionally identical to other LP2950CZ-5.0 variants with 100mA output and 5V fixed output. The /NOPB suffix indicates "No Plumbum" (lead-free) packaging. It is suitable for applications not requiring 150mA output current.

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