MIC3975BMM-TR Equivalent & Substitute Parts

Part Overview

The MIC3975BMM-TR is a linear voltage regulator IC from Microchip Technology designed for positive adjustable output applications. It delivers 750mA output current with an adjustable output voltage range from 1.24V to 16V, housed in an 8-MSOP surface mount package. The device includes integrated protection features for over-current, over-temperature, and reverse polarity conditions, with an enable control feature for power management applications.

The MIC3975BMM-TR is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications.

Substiute Parts

MIC3975BMM-TR

Microchip TechnologyIn Stock: 822MIC3975BMM-TR Datasheet

Current PartRFQ

MIC3975YMM-TR

Microchip TechnologyIn Stock: 8806MIC3975YMM-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC3975BMM-TR is determined by strict equivalence across the following electrical and mechanical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Voltage specifications (Input Max: 16V, Output Min: 1.24V, Output Max: 16V)
• Current rating (750mA)
• Dropout voltage (0.5V @ 750mA)
• Control and protection features (Enable, Over Current, Over Temperature, Reverse Polarity)
• Package type (8-MSOP)
• Operating temperature range (-40°C ~ 125°C)

The MIC3975YMM-TR qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MIC3975YMM-TR is the direct substitute for the MIC3975BMM-TR. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility.

Selection between these parts is determined by availability and compliance requirements:

The MIC3975BMM-TR is no longer in active production and is discontinued at DiGi Electronics. The MIC3975YMM-TR is currently active with 8704 units in stock, providing reliable supply availability.

For new designs or redesigns requiring RoHS3 compliance, the MIC3975YMM-TR is the appropriate selection. For applications where RoHS non-compliant components are acceptable, either part meets the electrical and mechanical requirements. Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Are the MIC3975BMM-TR and MIC3975YMM-TR pin-compatible?

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

Q: What is the difference between the MIC3975BMM-TR and MIC3975YMM-TR?

A: The primary differences are product status and RoHS compliance. The MIC3975BMM-TR is discontinued and RoHS non-compliant. The MIC3975YMM-TR is active and ROHS3 compliant. All electrical and mechanical specifications are identical.

Q: Can I use the MIC3975YMM-TR in place of the MIC3975BMM-TR in existing designs?

A: Yes. The MIC3975YMM-TR is a direct functional and mechanical equivalent. No design changes are required for substitution.

Q: What does the "BMM" and "YMM" designation indicate?

A: These designations represent different manufacturing batches or compliance versions within the MIC3975 product line. The electrical and mechanical specifications remain identical across these variants.

Q: Are there any supply chain considerations when switching from MIC3975BMM-TR to MIC3975YMM-TR?

A: The MIC3975YMM-TR has significantly higher inventory availability (8704 units in stock versus 734 units for the discontinued MIC3975BMM-TR), ensuring consistent supply for production requirements.

Q: Does the RoHS3 compliance of the MIC3975YMM-TR affect circuit performance?

A: No. RoHS3 compliance is a material composition specification and does not alter electrical performance, output characteristics, or protection features. Functional behavior remains identical.