MAX5019ESA+ Equivalent & Substitute Parts

Part Overview

The MAX5019ESA+ is a flyback regulator controller IC designed for positive, isolation-capable step-up/step-down DC-DC conversion applications. This device operates as a transistor driver with integrated enable and soft start control features, suitable for power management solutions requiring isolated output topologies. The MAX5019ESA+ carries a "Not For New Designs" product status, indicating that while the part remains available in inventory (880 pcs), Analog Devices Inc./Maxim Integrated recommends evaluating alternative solutions for new design implementations. This status necessitates identifying functionally equivalent substitute parts to ensure long-term design viability and supply chain continuity.

Substiute Parts

MAX5019ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 959MAX5019ESA+ Datasheet

Current PartRFQ

MAX5014ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1018MAX5014ESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5019ESA+ is determined by strict equivalence across the following critical parameters:

• Topology: Flyback regulator controller architecture
• Function: Step-up/step-down DC-DC conversion capability
• Output Configuration: Positive, isolation-capable output
• Output Type: Transistor driver functionality
• Voltage Supply Range: 13V ~ 36V input specification
• Switching Frequency: 275kHz operation
• Maximum Duty Cycle: 85% specification
• Control Features: Enable and soft start functionality
• Package: 8-SOIC surface mount form factor
• Operating Temperature: -40°C ~ 85°C range
• Compliance: ROHS3 compliance and MSL Level 1 rating

The MAX5014ESA+ meets all these criteria and qualifies as a parametric equivalent substitute for the MAX5019ESA+.

Parameter Comparison

Engineering Selection Recommendations

Both the MAX5019ESA+ and MAX5014ESA+ carry identical "Not For New Designs" product status designations from Analog Devices Inc./Maxim Integrated. Both parts maintain full ROHS3 compliance and MSL Level 1 moisture sensitivity ratings, ensuring equivalent environmental and regulatory qualification across applications.

The MAX5014ESA+ provides parametric equivalence as a substitute option where inventory of the MAX5019ESA+ is constrained or where design continuity requires an alternative source. Current inventory availability shows 932 pcs of MAX5014ESA+ versus 880 pcs of MAX5019ESA+, providing supply flexibility.

For new design implementations, evaluation of actively supported flyback controller alternatives from Analog Devices Inc./Maxim Integrated or competing manufacturers is recommended, given the "Not For New Designs" status of both parts.

Frequently Asked Questions (FAQ)

Q: Can the MAX5014ESA+ directly replace the MAX5019ESA+ in existing designs?

A: Yes. The MAX5014ESA+ matches all critical electrical and mechanical parameters of the MAX5019ESA+, including topology, function, output configuration, voltage supply range, switching frequency, duty cycle specification, control features, package form factor, and operating temperature range. Pin-for-pin compatibility and functional equivalence are established.

Q: What is the significance of the "Not For New Designs" product status?

A: This designation indicates that Analog Devices Inc./Maxim Integrated is not recommending these parts for new design implementations. However, both parts remain available in production quantities and are suitable for sustaining existing designs or as interim solutions pending migration to actively supported alternatives.

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

A: No. Both the MAX5019ESA+ and MAX5014ESA+ maintain identical ROHS3 compliance status, MSL Level 1 moisture sensitivity ratings, REACH unaffected status, and ECCN/HTSUS classifications.

Q: What determines substitution eligibility for flyback controller ICs?

A: Substitution eligibility is determined by equivalence across topology (flyback architecture), function (step-up/step-down capability), output configuration (positive, isolation-capable), output type (transistor driver), voltage supply range (13V ~ 36V), switching frequency (275kHz), maximum duty cycle (85%), control features (enable, soft start), package form factor (8-SOIC), operating temperature range (-40°C ~ 85°C), and compliance certifications (ROHS3, MSL Level 1).

Q: Is the 8-SOIC package identical between both parts?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width specification, ensuring identical PCB footprint and mounting compatibility.