MAX5014ESA-T Equivalent & Substitute Parts

Part Overview

The MAX5014ESA-T is a flyback regulator controller IC manufactured by Analog Devices Inc./Maxim Integrated, designed for positive, isolation-capable output applications in step-up/step-down DC-DC conversion topologies. This component operates as a transistor driver with a single output phase and is packaged in 8-SOIC surface mount configuration.

The MAX5014ESA-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this controller architecture.

Substiute Parts

MAX5014ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 833MAX5014ESA-T Datasheet

Current PartRFQ

MAX17499BAUB+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1169MAX17499BAUB+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5014ESA-T is determined by the following critical parameters:

• Topology Compatibility: The substitute must support flyback, boost, or SEPIC topologies capable of delivering positive, isolation-capable output configurations
• Output Configuration: Positive output with isolation capability is required
• Supply Voltage Range: The substitute must operate within or encompass the 13V ~ 36V supply range
• Switching Frequency: Operating frequency must be compatible with system timing requirements
• Duty Cycle: Maximum duty cycle of 85% or greater is required
• Output Type: Transistor driver output is mandatory
• Package Compatibility: Surface mount packages with pin-compatible or functionally equivalent layouts
• Temperature Range: Operating temperature range must support -40°C ~ 85°C minimum
• Compliance: RoHS3 compliance and MSL 1 rating are required

The MAX17499BAUB+T qualifies as a substitute based on these criteria: it supports boost and SEPIC topologies with positive, isolation-capable output; operates across a 9.5V ~ 24V supply range (overlapping the critical 13V ~ 24V window); provides transistor driver output; maintains RoHS3 compliance and MSL 1 rating; and operates across -40°C ~ 125°C, exceeding the required temperature range.

Parameter Comparison

Engineering Selection Recommendations

The MAX17499BAUB+T is an active product with current manufacturing support from Analog Devices Inc./Maxim Integrated, providing supply chain continuity for applications requiring replacement of the obsolete MAX5014ESA-T. Both components maintain ROHS3 compliance and MSL 1 ratings, ensuring equivalent environmental and handling standards.

The MAX17499BAUB+T operates across -40°C ~ 125°C, providing extended temperature coverage beyond the MAX5014ESA-T specification. The substitute supports boost and SEPIC topologies with positive, isolation-capable output configurations, meeting the core functional requirements of the original design.

Package differences exist: the MAX5014ESA-T uses 8-SOIC packaging while the MAX17499BAUB+T uses 10-TFSOP/10-MSOP packaging. PCB layout modifications are required to accommodate the different pin count and package geometry. The supply voltage range of the MAX17499BAUB+T (9.5V ~ 24V) overlaps the critical operating window of the original specification, though the upper limit is reduced from 36V to 24V.

Frequently Asked Questions (FAQ)

Q: Can the MAX17499BAUB+T directly replace the MAX5014ESA-T without PCB modifications?

A: No. The MAX17499BAUB+T uses a 10-pin TFSOP/MSOP package compared to the 8-pin SOIC package of the MAX5014ESA-T. PCB layout redesign is required to accommodate the different pin configuration and package footprint.

Q: What is the primary difference in topology between these components?

A: The MAX5014ESA-T is a flyback controller, while the MAX17499BAUB+T supports boost and SEPIC topologies. Both deliver positive, isolation-capable outputs and function as transistor drivers, but the circuit architecture differs. Application-specific design review is necessary to confirm topology compatibility.

Q: Does the MAX17499BAUB+T support the full 13V ~ 36V supply range of the MAX5014ESA-T?

A: The MAX17499BAUB+T operates across 9.5V ~ 24V. The upper supply limit is reduced to 24V compared to the original 36V specification. Applications requiring operation above 24V require alternative component selection.

Q: Are both components RoHS3 compliant?

A: Yes. Both the MAX5014ESA-T and MAX17499BAUB+T are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, meeting equivalent environmental standards.

Q: What is the product status difference between these components?

A: The MAX5014ESA-T is classified as obsolete with no ongoing manufacturing support. The MAX17499BAUB+T is an active product with current production and technical support from Analog Devices Inc./Maxim Integrated.

Q: How do the switching frequency specifications compare?

A: The MAX5014ESA-T operates at a fixed 275kHz switching frequency. The MAX17499BAUB+T provides a programmable switching frequency range of 50kHz ~ 2.5MHz, offering greater design flexibility for frequency-dependent applications.

Q: Are there duty cycle limitations with the MAX17499BAUB+T?

A: The MAX17499BAUB+T specifies a maximum duty cycle of 75%, compared to 85% for the MAX5014ESA-T. Applications requiring duty cycles above 75% must evaluate alternative components or confirm compatibility through detailed circuit analysis.