MAX5038AEAI18 Equivalent & Substitute Parts

Part Overview

The MAX5038AEAI18 is a Buck Regulator Positive Output Step-Down DC-DC Controller IC in 28-SSOP packaging, designed for power management applications requiring dual-output phase control. This component operates as a transistor driver with synchronous rectification capability across a 4.75V to 28V supply range.

The MAX5038AEAI18 is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this controller architecture.

Substiute Parts

MAX5038AEAI18

Analog Devices Inc./Maxim IntegratedIn Stock: 923MAX5038AEAI18 Datasheet

Current PartRFQ

MAX5041EAI+

Analog Devices Inc./Maxim IntegratedIn Stock: 2046MAX5041EAI+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5038AEAI18 is based on strict alignment of the following critical parameters:

• Topology & Function: Buck regulator with step-down DC-DC control architecture
• Output Configuration: Positive output with dual-phase, dual-output capability
• Output Type: Transistor driver for external power stage control
• Electrical Specifications: Supply voltage range 4.75V ~ 28V; switching frequencies 250kHz and 500kHz
• Synchronous Rectification: Integrated synchronous rectifier support
• Package Compatibility: 28-SSOP surface mount package with identical pinout and thermal characteristics
• Environmental Compliance: ROHS3 compliance and MSL Level 1 rating

The MAX5041EAI+ meets all substitution criteria as a manufacturer-recommended alternative from Analog Devices Inc./Maxim Integrated, maintaining functional and electrical equivalence while offering active product status and enhanced control features.

Parameter Comparison

Engineering Selection Recommendations

The MAX5041EAI+ is the manufacturer-recommended substitute for the obsolete MAX5038AEAI18. Both components share identical electrical specifications, package geometry, and compliance certifications. The MAX5041EAI+ maintains active product status with established supply chain availability, eliminating obsolescence risk.

The MAX5041EAI+ introduces Phase Control as an additional control feature beyond the base Enable function of the MAX5038AEAI18. This enhancement does not compromise backward compatibility in applications requiring only standard Enable control. The identical 28-SSOP package ensures direct PCB layout compatibility without redesign requirements.

Both components maintain ROHS3 compliance and MSL Level 1 rating, supporting deployment in standard manufacturing environments without moisture-related handling constraints.

Frequently Asked Questions (FAQ)

Q: Can the MAX5041EAI+ directly replace the MAX5038AEAI18 without PCB modifications?

A: Yes. Both components use the 28-SSOP package with identical pinout and thermal characteristics. No PCB layout changes are required for direct substitution.

Q: What is the significance of the Phase Control feature in the MAX5041EAI+?

A: Phase Control is an additional control capability that does not affect basic operation. Applications using only the Enable function will operate identically to the MAX5038AEAI18. The feature provides design flexibility for advanced power management scenarios.

Q: Are the electrical operating ranges identical between these components?

A: Yes. Both components operate across 4.75V to 28V supply voltage, support 250kHz and 500kHz switching frequencies, and maintain identical temperature operating ranges of -40°C to 85°C.

Q: What is the packaging difference between the two parts?

A: The MAX5038AEAI18 is supplied in standard packaging, while the MAX5041EAI+ is supplied in Tube packaging. Both use the 28-SSOP case format with identical electrical and mechanical specifications.

Q: Are there compliance or certification differences?

A: No. Both components are ROHS3 compliant with MSL Level 1 rating and EAR99 export classification. Compliance requirements are fully equivalent.

Q: Why is the MAX5038AEAI18 classified as obsolete?

A: Product obsolescence reflects manufacturer lifecycle decisions. The MAX5041EAI+ represents the active continuation of this controller architecture with maintained functional equivalence and enhanced feature availability.