MIC5191BMM Equivalent & Substitute Parts

Part Overview

The MIC5191BMM is a linear regulator controller IC from Microchip Technology designed for positive adjustable output applications. It features a single output configuration in a 10-MSOP surface mount package, operating across an input voltage range of 1V to 5.5V with a supply current of 15mA. The device is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

MIC5191BMM

Microchip TechnologyIn Stock: 2327MIC5191BMM Datasheet

Current PartRFQ

MIC5191YMM

Microchip TechnologyIn Stock: 2176MIC5191YMM Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MIC5191YMM qualifies as a direct substitute for the MIC5191BMM based on the following critical parameters:

• Functional Equivalence: Both parts are linear regulator controller ICs with identical positive adjustable output configuration
• Electrical Specifications: Matching supply current (15mA), input voltage range (1V ~ 5.5V), and operating temperature range (-40°C ~ 125°C)
• Package Compatibility: Both use 10-MSOP surface mount packaging with identical physical dimensions (0.118", 3.00mm Width)
• Base Product Number: Both derive from the MIC5191 base product family
• Regulatory Compliance: Both maintain REACH Unaffected status and EAR99 classification

The primary distinction lies in product status and RoHS compliance, with the MIC5191YMM offering ROHS3 compliance versus the non-compliant status of the MIC5191BMM.

Parameter Comparison

Engineering Selection Recommendations

The MIC5191YMM serves as the direct equivalent substitute for the MIC5191BMM. Both parts maintain identical electrical and mechanical specifications across all critical parameters including supply current, input voltage range, operating temperature, and package configuration.

The MIC5191YMM offers improved regulatory compliance with ROHS3 certification, making it the preferred selection for new designs or component replacement in applications subject to RoHS requirements. Both parts carry unlimited moisture sensitivity classification and maintain equivalent REACH and export control status.

Frequently Asked Questions (FAQ)

Q: Can the MIC5191YMM be used as a direct replacement for the MIC5191BMM in existing designs?

A: Yes. The MIC5191YMM is electrically and mechanically equivalent to the MIC5191BMM. Both parts share identical supply current (15mA), input voltage range (1V ~ 5.5V), operating temperature range (-40°C ~ 125°C), and 10-MSOP package configuration. No circuit modifications are required.

Q: What is the difference between the MIC5191BMM and MIC5191YMM?

A: The primary difference is RoHS compliance status. The MIC5191YMM is ROHS3 compliant, while the MIC5191BMM is RoHS non-compliant. Both parts are functionally identical and share the same electrical specifications and package type.

Q: Are there any package compatibility concerns when substituting these parts?

A: No. Both the MIC5191BMM and MIC5191YMM use the 10-MSOP surface mount package with identical physical dimensions (0.118", 3.00mm Width). PCB footprints and assembly processes remain unchanged.

Q: Why is the MIC5191BMM listed as discontinued?

A: The MIC5191BMM is discontinued at DiGi Electronics. The MIC5191YMM, while listed as obsolete, remains available as the functional equivalent from Microchip Technology's MIC5191 product family.

Q: Do both parts have the same moisture sensitivity classification?

A: Yes. Both the MIC5191BMM and MIC5191YMM carry MSL Level 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage or handling.