MIC5209-3.6BU TR Linear Voltage Regulator

Part Overview

The MIC5209-3.6BU TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed output applications. This device delivers 500mA output current with a fixed 3.6V output and is housed in a TO-263-5 surface mount package. The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing production and maintenance applications.

Substiute Parts

MIC5209-3.6BU TR

Microchip TechnologyIn Stock: 1082MIC5209-3.6BU TR Datasheet

Current PartRFQ

MIC5209-3.6YU-TR

Microchip TechnologyIn Stock: 982MIC5209-3.6YU-TR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MIC5209-3.6YU-TR qualifies as a direct substitute based on the following critical parameters:

• Identical output voltage: 3.6V fixed
• Identical output current rating: 500mA
• Identical maximum input voltage: 16V
• Identical voltage dropout specification: 0.6V @ 500mA
• Identical quiescent current: 170 µA
• Identical package type: TO-263-5
• Identical operating temperature range: -40°C to 125°C
• Identical protection features: Over Current, Over Temperature, Reverse Polarity
• Identical control features: Enable function

The substitution is valid because all electrical and mechanical parameters match the original specification. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MIC5209-3.6YU-TR is the appropriate substitute for the obsolete MIC5209-3.6BU TR. Selection is based on the following factors:

Product Status: The original part is obsolete, while the substitute is active and available in production quantities (957 Pcs in stock versus 1024 Pcs for the original).

Compliance Certification: The substitute meets ROHS3 compliance requirements, whereas the original is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations.

Electrical Equivalence: All electrical parameters are identical, ensuring direct functional compatibility in circuit applications.

Package Compatibility: Both parts use the TO-263-5 package, enabling direct PCB layout compatibility without redesign.

Regulatory Status: Both parts maintain identical REACH and ECCN classifications, with no impact on export or supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the MIC5209-3.6YU-TR be used as a direct replacement for the MIC5209-3.6BU TR?

A: Yes. All electrical specifications, output voltage, current ratings, and package dimensions are identical. The parts are functionally equivalent and require no circuit modifications.

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

A: The primary differences are product status and RoHS compliance. The MIC5209-3.6BU TR is obsolete and RoHS non-compliant, while the MIC5209-3.6YU-TR is active production and ROHS3 compliant.

Q: Are there any PCB layout considerations when switching to the substitute?

A: No. Both parts use the identical TO-263-5 package with the same pinout and thermal characteristics. Existing PCB designs require no modification.

Q: Does the substitute have the same protection features?

A: Yes. Both parts include identical protection: Over Current, Over Temperature, and Reverse Polarity protection, with Enable control functionality.

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

A: Both parts have MSL 3 rating with a 168-hour floor life specification.

Q: Are there supply chain advantages to using the substitute?

A: Yes. The MIC5209-3.6YU-TR is in active production with current inventory availability, whereas the original part is obsolete and subject to limited stock conditions.