MIC5259-2.85YML-TR Equivalent & Substitute Parts

Part Overview

The MIC5259-2.85YML-TR is a linear voltage regulator IC from Microchip Technology designed for positive fixed output applications. This device delivers a fixed 2.85V output at 300mA maximum current with integrated protection features including over-current, over-temperature, and under-voltage lockout (UVLO) protection. The regulator operates across an industrial temperature range of -40°C to 125°C and is housed in a 6-DFN (2x2) surface mount package with exposed pad. The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Finding equivalent or substitute parts becomes necessary when addressing supply chain constraints, lead time requirements, or design flexibility needs while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

MIC5259-2.85YML-TR

Microchip TechnologyIn Stock: 1195MIC5259-2.85YML-TR Datasheet

Current PartRFQ

MIC5259-2.85YML-TR

Microchip TechnologyIn Stock: 1195MIC5259-2.85YML-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MIC5259-2.85YML-TR is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.85V
• Output current capability of 300mA minimum
• Maximum input voltage rating of 6V or greater
• Dropout voltage specification of 0.55V @ 300mA or lower
• 6-DFN (2x2) surface mount package with exposed pad
• Operating temperature range spanning -40°C to 125°C
• Integrated protection features: over-current, over-temperature, and UVLO
• Active product status with current manufacturing availability
• RoHS3 compliance certification

Only parts meeting all specified parameters qualify as direct substitutes. Parametric equivalents must demonstrate identical electrical performance and mechanical compatibility without design modification.

Parameter Comparison

Engineering Selection Recommendations

Component selection for the MIC5259-2.85YML-TR should prioritize parts with confirmed Active product status and current manufacturing availability. All substitute candidates must maintain ROHS3 compliance certification to satisfy regulatory requirements in target markets. Verification of identical package dimensions and pin configuration is essential for direct PCB compatibility without layout modifications.

The specified 6-DFN (2x2) exposed pad package requires surface mount assembly equipment capable of handling fine-pitch components. Thermal management considerations apply due to the exposed pad design, which facilitates heat dissipation during high-current operation near the 300mA maximum rating.

Selection of parts with matching quiescent current specifications (150 µA) ensures consistent power consumption profiles in battery-powered or low-power applications. Dropout voltage performance at rated current (0.55V @ 300mA) directly impacts minimum input voltage requirements and should be verified against specific application constraints.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the MIC5259-2.85YML-TR?

A: A direct substitute must match all electrical specifications including 2.85V fixed output, 300mA output current, 6V maximum input voltage, and 0.55V maximum dropout voltage at rated current. The package must be 6-DFN (2x2) with exposed pad, and protection features (over-current, over-temperature, UVLO) must be present. Operating temperature range must span -40°C to 125°C.

Q: Can I use a different output voltage regulator as a substitute?

A: No. The fixed 2.85V output voltage is a critical specification. Regulators with different output voltages are not compatible without circuit redesign and are not considered substitutes.

Q: Is package compatibility important for substitution?

A: Yes. The 6-DFN (2x2) surface mount package with exposed pad is mandatory for direct substitution. Different package types require PCB layout modifications and are not considered drop-in replacements.

Q: What role does product status play in component selection?

A: Active product status indicates current manufacturing and availability. Components with discontinued or obsolete status may present supply chain risks and should be avoided unless specifically required for legacy system maintenance.

Q: Are there any thermal considerations for this regulator?

A: The exposed pad design facilitates heat dissipation. Proper PCB thermal design with adequate copper area connected to the exposed pad is necessary to maintain performance at maximum output current (300mA) and ensure reliable operation across the full temperature range.

Q: Does RoHS3 compliance affect substitution decisions?

A: Yes. All substitute parts must maintain RoHS3 compliance to satisfy regulatory requirements. Non-compliant alternatives introduce regulatory risk and are not acceptable substitutes.