MIC2951-03BMM Equivalent & Substitute Parts

Part Overview

The MIC2951-03BMM is a linear voltage regulator IC from Microchip Technology designed for positive adjustable (fixed) output applications. This 8-MSOP surface mount device delivers 150mA output current with input voltage tolerance up to 30V and adjustable output ranging from 1.24V to 29V. The device integrates over-current, over-temperature, and reverse polarity protection with an enable control feature.

The MIC2951-03BMM is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

MIC2951-03BMM

Microchip TechnologyIn Stock: 17935MIC2951-03BMM Datasheet

Current PartRFQ

MIC2951-03YMM

Microchip TechnologyIn Stock: 55480MIC2951-03YMM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC2951-03BMM is determined by strict equivalence across electrical and mechanical parameters. The substitute part must satisfy all of the following criteria:

• Identical output configuration (Positive)
• Identical output type (Adjustable/Fixed)
• Identical number of regulators (1)
• Matching voltage specifications: Input (Max) 30V, Output (Min/Fixed) 1.24V (5V), Output (Max) 29V
• Matching current specifications: Output 150mA, Quiescent 300 µA, Supply (Max) 8 mA
• Matching dropout voltage: 0.6V @ 150mA
• Identical control features (Enable)
• Identical protection features (Over Current, Over Temperature, Reverse Polarity)
• Matching operating temperature range: -40°C ~ 125°C
• Identical mounting type (Surface Mount)
• Compatible package: 8-MSOP

The MIC2951-03YMM meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The MIC2951-03YMM is the direct functional equivalent of the MIC2951-03BMM. Both devices share identical electrical specifications and mechanical packaging, ensuring pin-for-pin and functional compatibility.

The primary distinction between these parts is regulatory compliance and product status. The MIC2951-03YMM is ROHS3 compliant and maintains active product status, whereas the MIC2951-03BMM is RoHS non-compliant and discontinued. For new designs and ongoing production requiring regulatory compliance with modern environmental standards, the MIC2951-03YMM is the appropriate selection. The MIC2951-03YMM is supplied in tube packaging, which is standard for active production inventory.

Frequently Asked Questions (FAQ)

Q: Can the MIC2951-03YMM be used as a direct replacement for the MIC2951-03BMM?

A: Yes. The MIC2951-03YMM is electrically and mechanically identical to the MIC2951-03BMM. All electrical parameters, output specifications, protection features, and package dimensions are equivalent. No circuit modifications are required.

Q: What is the difference between the MIC2951-03BMM and MIC2951-03YMM?

A: The primary differences are product status and regulatory compliance. The MIC2951-03BMM is discontinued and RoHS non-compliant. The MIC2951-03YMM is an active product that meets ROHS3 compliance standards. Packaging differs: MIC2951-03YMM is supplied in tube format.

Q: Are there any compatibility concerns when substituting the MIC2951-03YMM for the MIC2951-03BMM?

A: No compatibility concerns exist. Both parts use the 8-MSOP package with identical pinout and electrical characteristics. PCB layout and circuit design remain unchanged.

Q: Why is the MIC2951-03BMM discontinued?

A: The MIC2951-03BMM is discontinued at DiGi Electronics. The MIC2951-03YMM represents the current active equivalent from Microchip Technology.

Q: Does the MIC2951-03YMM meet current environmental regulations?

A: Yes. The MIC2951-03YMM is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components.