MIC29201-12BU Equivalent & Substitute Parts

Part Overview

The MIC29201-12BU is a linear voltage regulator IC from Microchip Technology designed for positive fixed 12V output applications with 400mA current capacity in a TO-263-5 surface mount package. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing production, maintenance, and design continuity. The regulator incorporates load dump, over-current, and reverse polarity protection features, with an enable control function for system integration.

Substiute Parts

MIC29201-12BU

Microchip TechnologyIn Stock: 3615MIC29201-12BU Datasheet

Current PartRFQ

MIC29201-12WU

Microchip TechnologyIn Stock: 1630MIC29201-12WU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MIC29201-12BU is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 12V fixed
• Output current rating: 400mA minimum
• Input voltage tolerance: 26V maximum
• Voltage dropout characteristics: 0.75V @ 400mA
• Quiescent current: 300 µA
• Operating temperature range: -40°C to 125°C
• Package configuration: TO-263-5 surface mount
• Protection and control features: Load dump, over-current, reverse polarity protection, and enable function

The MIC29201-12WU meets all these criteria as a direct substitute, with identical electrical specifications and package configuration. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MIC29201-12WU is the direct equivalent substitute for the MIC29201-12BU. Both parts share identical electrical specifications, output characteristics, and package configuration. The MIC29201-12WU is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The MIC29201-12BU, classified as obsolete, should be replaced with the MIC29201-12WU in all applications where regulatory compliance and long-term component availability are required. The MIC29201-12WU is available in tube packaging format, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MIC29201-12WU directly replace the MIC29201-12BU in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The MIC29201-12WU operates at the same output voltage (12V), current rating (400mA), input voltage range (26V max), and dropout voltage (0.75V @ 400mA). Package configuration and pinout are identical in TO-263-5 format.

Q: What is the difference between the MIC29201-12BU and MIC29201-12WU?

A: The primary differences are product status and compliance. The MIC29201-12BU is obsolete and RoHS non-compliant. The MIC29201-12WU is active and ROHS3 compliant. Electrical performance and package type are identical.

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

A: No. Both parts operate across the same temperature range (-40°C to 125°C) with identical quiescent current (300 µA) and protection features (load dump, over-current, reverse polarity).

Q: What packaging formats are available?

A: The MIC29201-12BU is supplied in bulk packaging. The MIC29201-12WU is supplied in tube packaging, which is standard for automated assembly operations.

Q: Is the MIC29201-12WU suitable for new product designs?

A: Yes. The MIC29201-12WU is the recommended choice for new designs due to its active product status and ROHS3 compliance certification.