MIC29371-5.0BU Equivalent & Substitute Parts

Part Overview

The MIC29371-5.0BU is a linear voltage regulator IC from Microchip Technology designed for positive fixed 5V output applications with 750mA 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 and maintenance applications. The MIC29371-5.0BU provides regulated 5V output with integrated over-current and over-temperature protection features, operating across the industrial temperature range of -40°C to 125°C.

Substiute Parts

MIC29371-5.0BU

Microchip TechnologyIn Stock: 6632MIC29371-5.0BU Datasheet

Current PartRFQ

MIC29371-5.0WU

Microchip TechnologyIn Stock: 1432MIC29371-5.0WU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MIC29371-5.0BU is determined by strict equivalence across the following critical parameters:

• Output voltage specification: 5V fixed
• Output current rating: 750mA minimum
• Input voltage maximum rating: 26V or greater
• Package compatibility: TO-263-5 surface mount configuration
• Functional features: Enable control and over-current/over-temperature protection
• Operating temperature range: -40°C to 125°C minimum

The MIC29371-5.0WU qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is product status and RoHS compliance certification, not functional or electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The MIC29371-5.0WU is the direct substitute for the obsolete MIC29371-5.0BU. Both parts share identical electrical specifications, output ratings, and package configurations. The MIC29371-5.0WU is currently in active production status, ensuring long-term availability and supply chain continuity.

For applications subject to RoHS compliance requirements, the MIC29371-5.0WU meets ROHS3 standards, whereas the MIC29371-5.0BU does not. The MIC29371-5.0WU is supplied in tube packaging, which may differ from the original bulk packaging format of the MIC29371-5.0BU.

Both parts maintain identical thermal and electrical performance characteristics across the full operating temperature range and are suitable for direct pin-for-pin replacement in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the MIC29371-5.0WU replace the MIC29371-5.0BU in existing designs?

A: Yes. The MIC29371-5.0WU is a direct electrical and mechanical equivalent. Both parts feature identical output voltage (5V), output current (750mA), input voltage rating (26V), package type (TO-263-5), and protection features. Pin configuration and thermal characteristics are identical.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and RoHS compliance. The MIC29371-5.0BU is obsolete and RoHS non-compliant, while the MIC29371-5.0WU is active production and ROHS3 compliant. Packaging format also differs: bulk versus tube. Electrical and functional specifications are identical.

Q: Are there any package compatibility considerations?

A: Both parts use the TO-263-5 surface mount package (D2PAK configuration with 5 leads plus tab). PCB footprints and thermal pad designs are identical. No layout modifications are required for substitution.

Q: Does the MIC29371-5.0WU meet RoHS requirements?

A: Yes. The MIC29371-5.0WU is ROHS3 compliant. If your application requires RoHS certification, the MIC29371-5.0WU is the appropriate selection.

Q: What is the MSL rating for these parts?

A: Both parts carry MSL rating 3 with a 168-hour floor life. Moisture sensitivity handling procedures are identical for both components.

Q: Can I use these parts interchangeably in production?

A: Yes, for electrical and functional purposes. However, verify packaging requirements with your procurement process, as the MIC29371-5.0WU is supplied in tube format while the MIC29371-5.0BU was supplied in bulk.