MAX1971EEE Equivalent & Substitute Parts

Part Overview

The MAX1971EEE is a buck switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive adjustable power management applications. This device functions as a step-down converter with dual output capability, delivering up to 750mA output current across a 2.6V to 5.5V input range. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

MAX1971EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 3124MAX1971EEE Datasheet

Current PartRFQ

MAX1971EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 5778MAX1971EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1971EEE is determined by strict equivalence across the following critical parameters:

• Function: Step-down buck topology
• Output Configuration: Positive adjustable (programmable)
• Number of Outputs: Dual output (2)
• Input Voltage Range: 2.6V to 5.5V minimum compatibility
• Output Voltage Range: 1.2V to 5.5V with selectable fixed outputs
• Output Current: 750mA minimum rating
• Switching Frequency: 700kHz operation
• Synchronous Rectifier: Integrated rectification capability
• Package: 16-SSOP form factor
• Operating Temperature: -40°C to 85°C range

The MAX1971EEE+ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1971EEE+ is the direct functional equivalent of the MAX1971EEE. Both parts share identical electrical specifications, pin configuration, and package geometry, ensuring drop-in compatibility at the circuit board level.

Selection between these parts is determined by compliance and availability requirements:

• MAX1971EEE+ is the preferred choice for new designs and production continuity. This part carries Active product status and ROHS3 compliance certification, meeting current regulatory requirements and ensuring long-term supply availability.

• MAX1971EEE is classified as Obsolete and carries RoHS non-compliant status. This part should be used only when existing inventory must be consumed or when legacy system maintenance requires exact part matching.

Both parts are supplied by Analog Devices Inc./Maxim Integrated and maintain identical electrical performance across the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can MAX1971EEE+ be used as a direct replacement for MAX1971EEE in existing designs?

A: Yes. The MAX1971EEE+ is electrically and mechanically identical to the MAX1971EEE. Pin configuration, package footprint (16-SSOP), and all electrical parameters are equivalent. No circuit modifications are required.

Q: What is the difference between MAX1971EEE and MAX1971EEE+?

A: The primary differences are product status and compliance certification. MAX1971EEE+ is Active and ROHS3 compliant, while MAX1971EEE is Obsolete and RoHS non-compliant. Electrical specifications and package type are identical.

Q: Why is MAX1971EEE marked as Obsolete?

A: Obsolete status indicates the part is no longer in active production. MAX1971EEE+ serves as the current production equivalent and should be used for new designs and ongoing supply requirements.

Q: Are there packaging differences between these parts?

A: MAX1971EEE+ is supplied in Tube packaging. The original MAX1971EEE packaging specification is not provided. Both parts use the same 16-SSOP physical package for PCB mounting.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is based on matching: buck topology, dual positive adjustable outputs, 2.6V to 5.5V input range, 750mA output current, 700kHz switching frequency, integrated synchronous rectifier, and 16-SSOP package configuration.

Q: Is RoHS compliance a functional requirement for substitution?

A: RoHS compliance is a regulatory and supply chain consideration, not a functional electrical requirement. MAX1971EEE+ provides ROHS3 compliance for applications requiring regulatory adherence. Both parts deliver identical electrical performance.