MIC5239-3.0BMM Equivalent & Substitute Parts

Part Overview

The MIC5239-3.0BMM is a linear voltage regulator IC from Microchip Technology designed for positive fixed 3V output applications with 500mA current capacity. This device is classified as a Power Management PMIC and features integrated protection mechanisms including over-current, over-temperature, over-voltage, and reverse polarity protection. The part is currently discontinued at DiGi Electronics, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

MIC5239-3.0BMM

Microchip TechnologyIn Stock: 840MIC5239-3.0BMM Datasheet

Current PartRFQ

MIC5239-3.0YMM

Microchip TechnologyIn Stock: 2849MIC5239-3.0YMM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC5239-3.0BMM is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 3V fixed output
• Output current capacity: 500mA minimum
• Input voltage rating: 30V maximum
• Dropout voltage: 0.35V @ 500mA (Typ)
• Package form factor: 8-MSOP with 3.00mm width
• Surface mount configuration
• Protection feature set: Over-current, over-temperature, over-voltage, and reverse polarity protection
• Quiescent current: 45 µA
• Control features: Enable function

The MIC5239-3.0YMM qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The MIC5239-3.0YMM is the direct equivalent substitute for the discontinued MIC5239-3.0BMM. Both parts are manufactured by Microchip Technology and share identical electrical and mechanical specifications.

Key differentiation factors:

• Product Status: The MIC5239-3.0BMM is discontinued at DiGi Electronics, while the MIC5239-3.0YMM maintains active product status.
• RoHS Compliance: The MIC5239-3.0BMM is RoHS non-compliant. The MIC5239-3.0YMM is ROHS3 compliant, meeting current environmental and regulatory standards.
• Packaging: The MIC5239-3.0BMM is supplied in bulk packaging. The MIC5239-3.0YMM is supplied in tube packaging.
• Inventory Availability: The MIC5239-3.0YMM has significantly higher inventory availability (2764 Pcs) compared to the MIC5239-3.0BMM (780 Pcs).

For new designs and production continuity, the MIC5239-3.0YMM is the recommended selection based on active product status, regulatory compliance, and supply availability.

Frequently Asked Questions (FAQ)

Q: Are the MIC5239-3.0BMM and MIC5239-3.0YMM pin-compatible?

A: Yes. Both parts use the 8-MSOP package with identical pinout and electrical characteristics. Direct PCB substitution is possible without design modification.

Q: What is the difference between bulk and tube packaging?

A: Bulk packaging is used for high-volume orders without individual component protection. Tube packaging provides organized, protected storage for individual components. Both packaging types contain the same electrical component.

Q: Why is the MIC5239-3.0BMM discontinued?

A: The MIC5239-3.0BMM is discontinued at DiGi Electronics. The MIC5239-3.0YMM remains the active equivalent from Microchip Technology.

Q: Does RoHS3 compliance affect electrical performance?

A: No. RoHS3 compliance indicates conformance to environmental and material restrictions. Electrical specifications and performance remain identical between the RoHS non-compliant and ROHS3 compliant versions.

Q: Can I use the MIC5239-3.0YMM as a direct replacement in existing designs?

A: Yes. Identical electrical specifications, pin configuration, and package dimensions allow direct substitution without circuit design changes.

Q: What protection features are included in both parts?

A: Both the MIC5239-3.0BMM and MIC5239-3.0YMM include over-current, over-temperature, over-voltage, and reverse polarity protection.