MIC5239BMM Equivalent & Substitute Parts

Part Overview

The MIC5239BMM is a linear voltage regulator IC from Microchip Technology designed for positive adjustable output applications. It delivers 500mA output current with an adjustable voltage range from 1.24V to 20V, suitable for power management applications requiring precision voltage regulation. The device is currently discontinued at DiGi Electronics, making equivalent substitute parts essential for ongoing design support and production continuity.

Substiute Parts

MIC5239BMM

Microchip TechnologyIn Stock: 1974MIC5239BMM Datasheet

Current PartRFQ

MIC5239YMM

Microchip TechnologyIn Stock: 1855MIC5239YMM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC5239BMM is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Voltage range (Input Max: 30V; Output Min: 1.24V; Output Max: 20V)
• Current rating (500mA output)
• Dropout voltage (0.35V @ 500mA typical)
• Quiescent current (45 µA)
• Protection features (Over Current, Over Temperature, Over Voltage, Reverse Polarity)
• Operating temperature range (-40°C ~ 125°C)
• Package type (8-MSOP)
• Compliance standards (ROHS3, REACH Unaffected)

The MIC5239YMM meets all these criteria and qualifies as a direct substitute. The primary distinction is product status: MIC5239BMM is discontinued, while MIC5239YMM remains active.

Parameter Comparison

Engineering Selection Recommendations

The MIC5239YMM is the direct substitute for MIC5239BMM applications. Both parts are manufactured by Microchip Technology and share identical electrical and mechanical specifications. The MIC5239YMM maintains active product status, ensuring long-term availability and supply chain continuity. Both devices carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements for industrial and commercial applications. Selection of MIC5239YMM over the discontinued MIC5239BMM eliminates obsolescence risk while preserving full functional compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can MIC5239YMM replace MIC5239BMM in existing designs? A: Yes. The MIC5239YMM is electrically and mechanically identical to MIC5239BMM across all specified parameters. No circuit modifications are required for direct substitution.

Q: What is the primary reason to switch from MIC5239BMM to MIC5239YMM? A: MIC5239BMM is discontinued at DiGi Electronics, while MIC5239YMM remains in active production. Switching ensures ongoing availability and supply chain stability.

Q: Are the package dimensions identical between these parts? A: Yes. Both parts use the 8-MSOP package with dimensions of 0.118" width and 3.00mm height. PCB footprints are identical.

Q: Do both parts meet the same compliance standards? A: Yes. Both MIC5239BMM and MIC5239YMM are ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements.

Q: Is there any difference in electrical performance between these parts? A: No. Both parts deliver identical electrical performance: 500mA output current, 1.24V to 20V adjustable output range, 0.35V typical dropout voltage, and 45 µA quiescent current.

Q: What protection features are included in both parts? A: Both parts include Over Current, Over Temperature, Over Voltage, and Reverse Polarity protection.

Q: Are there any thermal or operating temperature differences? A: No. Both parts operate across the identical temperature range of -40°C to 125°C.