MIC29201-5.0BU TR Equivalent & Substitute Parts

Part Overview

The MIC29201-5.0BU TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed 5V output applications with 400mA current capacity in a TO-263-5 surface mount package. This device is classified as obsolete, making identification of suitable substitute components essential for ongoing production and maintenance applications. The part provides load dump protection, over-current protection, and reverse polarity protection with an enable control feature.

Substiute Parts

MIC29201-5.0BU TR

Microchip TechnologyIn Stock: 988MIC29201-5.0BU TR Datasheet

Current PartRFQ

MIC29201-5.0WU-TR

Microchip TechnologyIn Stock: 3752MIC29201-5.0WU-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC29201-5.0BU TR is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 5V fixed
• Maximum output current: 400mA
• Maximum input voltage: 26V
• Voltage dropout: 0.75V @ 400mA
• Package type: TO-263-5 surface mount
• Control and protection features: Enable control with load dump, over-current, and reverse polarity protection
• Operating temperature range: -40°C ~ 125°C
• Quiescent current: 300 µA

The MIC29201-5.0WU-TR meets all these parameters and qualifies as a parametric equivalent. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The MIC29201-5.0WU-TR is the direct substitute for the obsolete MIC29201-5.0BU TR. Both parts share identical electrical specifications and package form factor. The MIC29201-5.0WU-TR offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the MIC29201-5.0WU-TR carries ROHS3 compliance, whereas the original part is RoHS non-compliant, making it the preferred choice for applications subject to RoHS regulations. The tape and reel packaging of the MIC29201-5.0WU-TR is standard for high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can the MIC29201-5.0WU-TR directly replace the MIC29201-5.0BU TR in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same output voltage (5V), output current (400mA), input voltage rating (26V), dropout voltage (0.75V @ 400mA), operating temperature range (-40°C ~ 125°C), and TO-263-5 package configuration. No design modifications are required.

Q: What is the difference between the BU and WU designations?

A: The BU designation indicates bulk packaging, while WU indicates tape and reel packaging. The electrical specifications are identical. Tape and reel packaging is standard for automated assembly processes.

Q: Why is the original part marked as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The MIC29201-5.0WU-TR remains in active production and serves the same application requirements.

Q: Does the RoHS3 compliance of the MIC29201-5.0WU-TR affect compatibility?

A: No. RoHS3 compliance indicates adherence to environmental and material restrictions. This is a material composition specification that does not alter electrical or mechanical compatibility. The substitute part is suitable for all applications where the original part was used.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts have identical thermal characteristics, quiescent current (300 µA), and protection features (load dump, over-current, reverse polarity). Performance in the application circuit will be equivalent.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 3 (168 Hours) rating, indicating identical moisture sensitivity handling requirements during storage and assembly.