LM2930T-5.0 Equivalent & Substitute Parts

Part Overview

The LM2930T-5.0 is a linear voltage regulator IC from Texas Instruments, delivering a fixed 5V output at 150mA in a TO-220-3 through-hole package. This device is classified as obsolete, making equivalent and substitute parts necessary for new designs and production continuity. The regulator provides protection features including load dump, mirror-image insertion, over-temperature, reverse polarity, and short-circuit protection, with a maximum input voltage of 26V and dropout voltage of 0.6V at 150mA.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	150mA
Input Voltage (Max)	26V
Dropout Voltage	0.6V @ 150mA
Quiescent Current	7 mA
Operating Temperature Range	-40°C ~ 85°C
Package Type	TO-220-3
Mounting Type	Through Hole
Protection Features	Load Dump, Mirror-Image Insertion, Over Temperature, Reverse Polarity, Short Circuit

Substitute Part Grouping Explanation

Substitution for the LM2930T-5.0 is determined by the following critical parameters:

Fixed 5V output voltage
Output current capability (minimum 150mA required)
Maximum input voltage rating (26V or higher)
Package compatibility (TO-220-3 through-hole preferred for direct replacement)
Operating temperature range (-40°C to 85°C minimum)
Protection features (short-circuit and over-temperature protection required)

Substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical TO-220-3 packaging and 150mA output current rating, maintaining pin-for-pin compatibility.

Functional Alternatives: Parts with higher output current ratings (400mA to 3A) in TO-220-3 packaging, suitable for applications requiring increased current capacity while maintaining the same footprint and voltage output.

Surface-Mount Alternative: The LP2985IM5X-5.0/NOPB provides equivalent functionality in a smaller SOT-23-5 package for designs transitioning to surface-mount technology.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Package	Mounting Type	Operating Temp	Product Status	RoHS Status
LM2930T-5.0	Texas Instruments	5V	150mA	26V	0.6V @ 150mA	TO-220-3	Through Hole	-40°C ~ 85°C	Obsolete	Non-compliant
LM2930T-5.0/NOPB	Texas Instruments	5V	150mA	26V	0.6V @ 150mA	TO-220-3	Through Hole	-40°C ~ 85°C	Active	ROHS3 Compliant
LP2985IM5X-5.0/NOPB	Texas Instruments	5V	150mA	16V	0.58V @ 150mA	SOT-23-5	Surface Mount	-40°C ~ 125°C	Active	ROHS3 Compliant
MC78M05ACTG	onsemi	5V	500mA	35V	Not specified	TO-220-3	Through Hole	0°C ~ 125°C	Obsolete	ROHS3 Compliant
MC78M05BTG	onsemi	5V	500mA	35V	Not specified	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant
MC78M05CTG	onsemi	5V	500mA	35V	Not specified	TO-220-3	Through Hole	0°C ~ 125°C	Active	ROHS3 Compliant
MIC2920A-5.0WT	Microchip Technology	5V	400mA	26V	0.75V @ 400mA	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant
MIC2937A-5.0WT	Microchip Technology	5V	750mA	26V	Not specified	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant
MIC2940A-5.0WT	Microchip Technology	5V	1.25A	26V	0.6V @ 1.25A	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant
MIC29150-5.0WT	Microchip Technology	5V	1.5A	26V	0.6V @ 1.5A	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant
MIC29300-5.0WT	Microchip Technology	5V	3A	26V	0.6V @ 3A	TO-220-3	Through Hole	-40°C ~ 125°C	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (Pin-Compatible): LM2930T-5.0/NOPB is the direct equivalent with identical electrical specifications and TO-220-3 packaging. This part is active and ROHS3 compliant, addressing the obsolescence of the original LM2930T-5.0.

For Increased Current Capacity (Same Package): Microchip Technology MIC2920A-5.0WT, MIC2937A-5.0WT, MIC2940A-5.0WT, MIC29150-5.0WT, and MIC29300-5.0WT all provide 5V fixed output in TO-220-3 packaging with current ratings from 400mA to 3A. These are suitable for designs requiring higher current delivery while maintaining the same footprint. All are active and ROHS3 compliant.

For Higher Input Voltage Tolerance: MC78M05BTG and MC78M05CTG from onsemi support up to 35V input (compared to 26V for the LM2930T-5.0), providing additional design margin in applications with higher supply voltages. Both are active and ROHS3 compliant.

For Surface-Mount Applications: LP2985IM5X-5.0/NOPB provides equivalent 5V/150mA functionality in SOT-23-5 surface-mount packaging. This part is active, ROHS3 compliant, and extends the operating temperature range to 125°C. Input voltage is limited to 16V.

All recommended substitutes are ROHS3 compliant and active products, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a higher current-rated regulator as a direct substitute? A: Yes. Regulators with higher current ratings (400mA, 750mA, 1.25A, 1.5A, or 3A) are functionally compatible with the LM2930T-5.0 in TO-220-3 packaging. The circuit will operate correctly at the original 150mA load. Higher-rated devices provide design margin for future current increases.

Q: What is the difference between LM2930T-5.0 and LM2930T-5.0/NOPB? A: The /NOPB suffix indicates "No Lead (Pb)" and represents the RoHS-compliant version. LM2930T-5.0/NOPB is electrically identical but meets ROHS3 compliance requirements. The original LM2930T-5.0 is RoHS non-compliant and obsolete.

Q: Can I use the LP2985IM5X-5.0/NOPB in place of the LM2930T-5.0? A: The LP2985IM5X-5.0/NOPB provides equivalent voltage and current output but requires PCB redesign due to different packaging (SOT-23-5 surface-mount vs. TO-220-3 through-hole). The input voltage rating is lower (16V vs. 26V). Use this part only if your design supports surface-mount components and input voltage does not exceed 16V.

Q: Are onsemi MC78M05 regulators compatible with the LM2930T-5.0? A: MC78M05BTG and MC78M05CTG are functionally compatible in TO-220-3 packaging with higher current capacity (500mA) and input voltage rating (35V). Both are active and ROHS3 compliant. Operating temperature ranges differ: MC78M05CTG covers 0°C to 125°C, while MC78M05BTG covers -40°C to 125°C.

Q: Which substitute offers the best thermal performance? A: All TO-220-3 packages provide equivalent thermal characteristics. For applications requiring lower quiescent current, the LP2985IM5X-5.0/NOPB draws only 95 µA compared to 7 mA for the LM2930T-5.0, reducing standby power consumption.

Q: What is the minimum input voltage for these regulators? A: Input voltage specifications are provided as maximum ratings only. Typical minimum input voltage is approximately 1-2V above the output voltage (5V), requiring approximately 6-7V minimum input. Consult individual datasheets for precise minimum input voltage requirements.

Q: Are all substitute parts currently in stock? A: Availability varies by distributor and time. LM2930T-5.0/NOPB, LP2985IM5X-5.0/NOPB, and Microchip MIC series regulators are active products with established supply chains. onsemi MC78M05ACTG is obsolete; MC78M05BTG and MC78M05CTG are active alternatives.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message