MAX5014ESA Equivalent & Substitute Parts

Part Overview

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

The MAX5014ESA is classified as obsolete, which necessitates identification of equivalent and substitute components for new designs and ongoing production support. Alternative parts must maintain functional compatibility across critical electrical parameters including supply voltage range, switching frequency, duty cycle, and control features to ensure seamless integration into existing or new circuit designs.

Substiute Parts

MAX5014ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 4767MAX5014ESA Datasheet

Current PartRFQ

MAX5014ESA+

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

DirectRFQ

MAX17499BAUB+

Analog Devices Inc./Maxim IntegratedIn Stock: 2283MAX17499BAUB+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX5014ESA are identified based on functional equivalence across the following critical parameters:

Primary Substitution Criteria:

• Topology classification (Flyback, Boost, or SEPIC)
• Output configuration (Positive, Isolation Capable)
• Output type (Transistor Driver)
• Supply voltage range compatibility
• Switching frequency capability
• Maximum duty cycle rating
• Control feature set (Enable, Soft Start)
• Surface mount packaging
• RoHS3 compliance and MSL rating

The MAX5014ESA+ serves as a direct packaging variant with identical electrical specifications but different product status classification. The MAX17499BAUB+ represents a manufacturer-recommended alternative with extended topology support (Boost and SEPIC in addition to step-up/step-down functionality) and active product status, though with different package geometry and expanded operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

MAX5014ESA+ (Direct Packaging Variant): This part maintains identical electrical specifications and package geometry to the MAX5014ESA. However, its classification as "Not For New Designs" indicates limited long-term availability and support. Selection of this variant is appropriate only for legacy system maintenance or production continuation where design modification is not feasible.

MAX17499BAUB+ (Manufacturer-Recommended Alternative): This part carries active product status from Analog Devices Inc./Maxim Integrated, ensuring ongoing availability and technical support. The MAX17499BAUB+ supports extended topology options (Boost and SEPIC) while maintaining positive, isolation-capable output configuration and transistor driver output type. Key differences include:

• Supply voltage range reduced to 9.5V ~ 24V (subset of MAX5014ESA range)
• Switching frequency programmable from 50kHz to 2.5MHz (versus fixed 275kHz)
• Maximum duty cycle of 75% (versus 85%)
• Operating temperature range extended to -40°C ~ 125°C (junction temperature)
• Package geometry changed to 10-TFSOP/10-MSOP (versus 8-SOIC)
• Control features limited to Enable (Soft Start removed)

Selection of MAX17499BAUB+ requires circuit redesign validation to confirm compatibility with the modified electrical parameters and package footprint. This alternative is recommended for new designs requiring long-term component availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can MAX5014ESA+ be used as a direct replacement for MAX5014ESA?

A: Yes, MAX5014ESA+ provides electrical and mechanical equivalence with identical package geometry and specifications. However, its "Not For New Designs" status indicates limited future availability. Use this variant only for legacy production continuation.

Q: What are the key differences between MAX5014ESA and MAX17499BAUB+?

A: The MAX17499BAUB+ differs in supply voltage range (9.5V ~ 24V versus 13V ~ 36V), switching frequency (programmable 50kHz ~ 2.5MHz versus fixed 275kHz), maximum duty cycle (75% versus 85%), package type (10-TFSOP/10-MSOP versus 8-SOIC), and control features (Enable only versus Enable and Soft Start). Topology support is expanded to include Boost and SEPIC configurations.

Q: Is the MAX17499BAUB+ suitable for applications requiring 13V ~ 36V supply voltage?

A: No. The MAX17499BAUB+ supply voltage range is limited to 9.5V ~ 24V, which does not cover the full 13V ~ 36V range of the MAX5014ESA. Applications requiring operation above 24V supply voltage cannot use this substitute without circuit redesign.

Q: What packaging considerations apply when switching from MAX5014ESA to MAX17499BAUB+?

A: The MAX5014ESA uses 8-SOIC packaging (0.154", 3.90mm width), while MAX17499BAUB+ uses 10-TFSOP/10-MSOP packaging (0.118", 3.00mm width). PCB layout and footprint modifications are required. The increased pin count (10 versus 8) necessitates schematic and board design updates.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MAX5014ESA, MAX5014ESA+, and MAX17499BAUB+ are all ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring environmental and regulatory compatibility.

Q: Which substitute part is recommended for new designs?

A: MAX17499BAUB+ is the manufacturer-recommended alternative with active product status. New designs should incorporate this part to ensure long-term availability and technical support, provided that circuit parameters (supply voltage, switching frequency, duty cycle, and package footprint) are compatible with application requirements.