MIC29201-4.8BU TR Equivalent & Substitute Parts

Part Overview

The MIC29201-4.8BU TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed output applications. This Surface Mount device delivers 400mA output current with a fixed 4.85V output and operates across an input voltage range up to 26V. The part is classified as Obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MIC29201-4.8BU TR

Microchip TechnologyIn Stock: 1022MIC29201-4.8BU TR Datasheet

Current PartRFQ

MIC29201-4.8WU-TR

Microchip TechnologyIn Stock: 898MIC29201-4.8WU-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC29201-4.8BU TR is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 4.85V fixed
• Output current capability: 400mA minimum
• Maximum input voltage: 26V
• Voltage dropout: 0.75V @ 400mA
• Package type: TO-263-5 (Surface Mount)
• Control features: Enable function
• Protection features: Load Dump, Over Current, Reverse Polarity
• Operating temperature range: -40°C ~ 125°C

The MIC29201-4.8WU-TR meets all electrical and mechanical requirements for direct substitution. The primary distinction between the main part and its substitute is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The MIC29201-4.8WU-TR is the direct equivalent for the obsolete MIC29201-4.8BU TR. Both parts share identical electrical specifications, output characteristics, and mechanical packaging. The substitute part carries Active product status, ensuring continued availability and manufacturer support.

For applications requiring RoHS3 compliance, the MIC29201-4.8WU-TR is the appropriate selection. Both parts maintain equivalent moisture sensitivity levels and REACH compliance status. Pin-for-pin compatibility and identical thermal characteristics enable direct board-level substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Are the MIC29201-4.8BU TR and MIC29201-4.8WU-TR pin-compatible?

A: Yes. Both parts use the TO-263-5 package configuration with identical pinout and electrical interface. Direct substitution on existing PCB layouts is supported.

Q: What is the primary reason for substitution?

A: The MIC29201-4.8BU TR is classified as Obsolete. The MIC29201-4.8WU-TR is an Active equivalent that maintains all electrical and mechanical specifications while ensuring ongoing supply availability.

Q: Do the parts have different RoHS compliance levels?

A: The MIC29201-4.8BU TR is RoHS non-compliant. The MIC29201-4.8WU-TR is ROHS3 Compliant. For applications subject to RoHS3 requirements, the substitute part is the appropriate selection.

Q: Are there differences in thermal or electrical performance?

A: No. Both parts deliver identical output voltage (4.85V), output current (400mA), voltage dropout (0.75V @ 400mA), quiescent current (300 µA), and operating temperature range (-40°C ~ 125°C).

Q: Can the MIC29201-4.8WU-TR be used in existing designs without modification?

A: Yes. Electrical specifications, package type, and control features are identical. No circuit modifications are required for direct substitution.