MAX5081ATE Equivalent & Substitute Parts

Part Overview

The MAX5081ATE is a buck switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive adjustable step-down voltage regulation with 1A output current capability. This component operates across a wide input voltage range of 7.5V to 40V and provides adjustable output voltage from 1.23V to 32V. The device is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MAX5081ATE

Analog Devices Inc./Maxim IntegratedIn Stock: 986MAX5081ATE Datasheet

Current PartRFQ

MAX5081ATE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1714MAX5081ATE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5081ATE is determined by strict equivalence across the following critical parameters:

• Input voltage range: 7.5V to 40V minimum
• Output voltage adjustability: 1.23V to 32V minimum
• Output current capability: 1A minimum
• Switching frequency: 250kHz
• Package type: 16-WQFN Exposed Pad (5x5)
• Mounting configuration: Surface Mount
• Operating temperature range: -40°C to 125°C (TJ)
• Regulatory compliance: ROHS3 Compliant

The MAX5081ATE+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The MAX5081ATE+ is the direct functional equivalent of the MAX5081ATE. Selection between these parts should be based on the following factors:

Product Status: The MAX5081ATE is classified as obsolete, while the MAX5081ATE+ maintains active status. For new designs and long-term production continuity, the MAX5081ATE+ is the appropriate selection.

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent environmental and regulatory performance.

Packaging Considerations: The MAX5081ATE+ is supplied in strip packaging format, whereas the MAX5081ATE uses tube packaging. This distinction affects handling, storage, and automated assembly processes but does not impact electrical or thermal performance.

Electrical Equivalence: All electrical parameters, thermal characteristics, and functional specifications are identical between the two parts, confirming direct substitutability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can MAX5081ATE+ be used as a direct replacement for MAX5081ATE in existing designs?

A: Yes. The MAX5081ATE+ is electrically and mechanically equivalent to the MAX5081ATE. All input voltage ranges, output voltage adjustability, current ratings, switching frequency, operating temperature range, and package dimensions are identical. The parts are pin-compatible and functionally interchangeable.

Q: What is the difference between MAX5081ATE and MAX5081ATE+?

A: The primary differences are product status and packaging format. The MAX5081ATE is obsolete and supplied in tube packaging, while the MAX5081ATE+ is active and supplied in strip packaging. Electrical specifications and performance characteristics 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 junction temperature) and deliver identical thermal performance. Switching frequency, output current capability, and voltage regulation characteristics are equivalent.

Q: What packaging format should be selected for automated assembly?

A: Strip packaging (MAX5081ATE+) is typically preferred for automated pick-and-place assembly operations. Tube packaging (MAX5081ATE) is generally used for manual assembly or lower-volume applications. The choice depends on production methodology rather than electrical performance.

Q: Is the 16-WQFN package compatible with standard PCB assembly processes?

A: Yes. The 16-WQFN Exposed Pad package (5x5mm) is a standard surface-mount package compatible with conventional reflow soldering and automated assembly equipment. The exposed pad provides enhanced thermal dissipation for the 1A output current rating.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both MAX5081ATE and MAX5081ATE+ are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited). They meet the same environmental and regulatory requirements for industrial and commercial applications.