MAX5020ESA Equivalent & Substitute Parts

Part Overview

The MAX5020ESA is a flyback regulator controller IC manufactured by Analog Devices Inc./Maxim Integrated, designed for positive, isolation-capable step-up/step-down DC-DC conversion applications. This device operates as a transistor driver with a single output phase and is housed in an 8-SOIC surface mount package.

The MAX5020ESA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for systems utilizing this controller topology.

Substiute Parts

MAX5020ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 4281MAX5020ESA Datasheet

Current PartRFQ

MAX5020ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2378MAX5020ESA+ Datasheet

DirectRFQ

MAX5015ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1209MAX5015ESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX5020ESA are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Matching topology: Flyback regulator controller
• Identical function: Step-up/step-down DC-DC conversion
• Matching output configuration: Positive, isolation capable
• Identical supply voltage range: 13V ~ 36V
• Matching switching frequency: 275kHz
• Identical duty cycle maximum: 50%
• Matching operating temperature range: -40°C ~ 85°C
• Identical control features: Enable, Soft Start
• Equivalent RoHS and MSL compliance

The substitute parts identified—MAX5020ESA+ and MAX5015ESA+—meet all these electrical and mechanical parameters, enabling direct functional replacement in applications designed for the MAX5020ESA.

Parameter Comparison

Engineering Selection Recommendations

Both MAX5020ESA+ and MAX5015ESA+ are qualified substitutes for the MAX5020ESA based on complete electrical and mechanical parameter equivalence. Selection between these alternatives should consider the following factors:

MAX5020ESA+ is the direct manufacturer designation variant of the original MAX5020ESA, differing only in packaging format (tube) and product status classification. This part maintains the closest lineage to the original design.

MAX5015ESA+ represents a parametric equivalent from the MAX5015 base product line. Despite the different base model number, this device meets all specified electrical and mechanical requirements for functional substitution.

Both substitute parts carry ROHS3 compliance and MSL Level 1 ratings, ensuring compatibility with modern manufacturing and storage requirements. The product status of both substitutes is classified as "Not For New Designs," indicating these are legacy components. For new design initiatives, consultation with Analog Devices Inc./Maxim Integrated is recommended to identify current-generation alternatives.

Frequently Asked Questions (FAQ)

Q: Can MAX5020ESA+ be used as a direct replacement for MAX5020ESA?

A: Yes. MAX5020ESA+ is electrically and mechanically equivalent to MAX5020ESA. The primary difference is packaging format (tube versus original packaging) and product status designation. Pin configuration, electrical specifications, and functional performance are identical.

Q: Is MAX5015ESA+ compatible with MAX5020ESA applications?

A: Yes. MAX5015ESA+ meets all specified electrical and mechanical parameters required for substitution, including package type, topology, supply voltage range, switching frequency, duty cycle, operating temperature, and control features. Functional compatibility is confirmed.

Q: What is the significance of the "+" suffix in MAX5020ESA+ and MAX5015ESA+?

A: The "+" suffix indicates a packaging or manufacturing variant designation from Analog Devices Inc./Maxim Integrated. In these cases, both parts are supplied in tube packaging format. The electrical specifications remain unchanged from the base part number.

Q: Are there any compliance or certification differences between these parts?

A: All three parts—MAX5020ESA, MAX5020ESA+, and MAX5015ESA+—are ROHS3 compliant with MSL Level 1 ratings. Compliance certifications are equivalent across all three options.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates that the manufacturer no longer recommends these parts for new product development. Existing designs and production support may continue, but new applications should evaluate current-generation alternatives from the manufacturer's product portfolio.

Q: Are there any thermal or performance differences between MAX5020ESA and its substitutes?

A: No. All three parts share identical operating temperature ranges (-40°C ~ 85°C), switching frequency (275kHz), and duty cycle specifications (50% maximum). Thermal and performance characteristics are equivalent.