MAX5035AASA Buck Switching Regulator IC Equivalent & Substitute Parts

Part Overview

The MAX5035AASA is a buck switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for step-down voltage conversion applications. This device delivers a fixed 3.3V output at 1A from input voltages ranging from 7.5V to 76V, operating at a switching frequency of 125kHz. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing production support, design updates, and inventory management. Active equivalent parts with identical electrical and mechanical specifications are available to ensure continuity of supply and system performance.

Substiute Parts

MAX5035AASA

Analog Devices Inc./Maxim IntegratedIn Stock: 1962MAX5035AASA Datasheet

Current PartRFQ

MAX5035AASA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2280MAX5035AASA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5035AASA is determined by strict equivalence across the following critical parameters:

• Output voltage specification (3.3V fixed)
• Output current capability (1A minimum)
• Input voltage range (7.5V to 76V)
• Switching frequency (125kHz)
• Package type (8-SOIC with 0.154" width, 3.90mm)
• Mounting configuration (Surface Mount)
• Operating temperature range (-40°C to 125°C)
• Regulatory compliance (ROHS3, REACH Unaffected)

The MAX5035AASA+ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status: MAX5035AASA is obsolete, while MAX5035AASA+ is active production, and packaging format (tube vs. unspecified for the original).

Parameter Comparison

Engineering Selection Recommendations

The MAX5035AASA+ is the appropriate substitute for the obsolete MAX5035AASA. Both parts maintain identical electrical performance specifications and mechanical compatibility, ensuring direct replacement without circuit redesign or PCB layout modification.

Selection of MAX5035AASA+ is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• Full compliance with ROHS3 and REACH regulatory requirements
• Identical package footprint (8-SOIC, 0.154" width, 3.90mm) for direct PCB compatibility
• Matching operating temperature range (-40°C to 125°C) for equivalent thermal performance
• Equivalent moisture sensitivity classification (MSL 1) for identical handling and storage requirements

For applications currently using MAX5035AASA, transition to MAX5035AASA+ presents no technical barriers and eliminates obsolescence risk.

Frequently Asked Questions (FAQ)

Q: Can MAX5035AASA+ be used as a direct replacement for MAX5035AASA?

A: Yes. Both parts are electrically and mechanically identical. The MAX5035AASA+ is the active production equivalent of the obsolete MAX5035AASA. No circuit modifications or PCB changes are required.

Q: What is the difference between MAX5035AASA and MAX5035AASA+?

A: The primary difference is product status and packaging format. MAX5035AASA is obsolete; MAX5035AASA+ is active production supplied in tube packaging. Electrical specifications and package dimensions are identical.

Q: Are the PCB footprints identical?

A: Yes. Both parts use the 8-SOIC package with 0.154" width and 3.90mm body dimension. PCB layouts designed for MAX5035AASA require no modification to accommodate MAX5035AASA+.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both MAX5035AASA and MAX5035AASA+ are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

Q: Can these parts operate across the same temperature range?

A: Yes. Both parts operate from -40°C to 125°C junction temperature, providing identical thermal performance for industrial and extended temperature applications.