MAX1797EUA-T Equivalent & Substitute Parts

Part Overview

The MAX1797EUA-T is a boost switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive adjustable output voltage regulation in power management applications. This device operates as a step-up converter with a single output, delivering up to 800mA switch current across an input range of 1V to 5.5V. The part is classified as obsolete, which necessitates identification of active equivalent alternatives to ensure design continuity and supply chain reliability.

Substiute Parts

MAX1797EUA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1188MAX1797EUA-T Datasheet

Current PartRFQ

MAX1797EUA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 7776MAX1797EUA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1797EUA-T is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for:

• Boost converter topology with positive adjustable output
• Input voltage range: 1V to 5.5V
• Output voltage range: 2V to 5.5V with programmable adjustment
• Output current capability: 800mA switch current
• Switching frequency: 500kHz
• Synchronous rectifier implementation
• Operating temperature range: -40°C to 85°C
• Package type: 8-TSSOP/8-MSOP (8-uMAX/uSOP)
• Surface mount configuration

The MAX1797EUA+T meets all these criteria and is classified as a direct manufacturer equivalent with identical electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MAX1797EUA+T is the direct equivalent substitute for the obsolete MAX1797EUA-T. Both parts share identical electrical specifications and package configurations, ensuring pin-for-pin and functional compatibility in boost converter applications.

The primary distinction is product status and compliance posture. The MAX1797EUA-T is classified as obsolete, presenting supply chain risk and limiting availability for new designs. The MAX1797EUA+T maintains active status with current manufacturing support and improved regulatory compliance. Specifically, the substitute part achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. Both parts maintain equivalent REACH and ECCN classifications.

For applications requiring regulatory compliance with modern environmental standards, the MAX1797EUA+T is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part satisfies the electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Are MAX1797EUA-T and MAX1797EUA+T electrically identical?

A: Yes. Both parts implement identical boost converter topology, voltage specifications, current ratings, switching frequency, and synchronous rectifier functionality. All electrical parameters are equivalent.

Q: Can MAX1797EUA+T be used as a direct replacement for MAX1797EUA-T?

A: Yes. The parts are pin-for-pin compatible and functionally equivalent. The MAX1797EUA+T can be substituted directly into existing designs without circuit modifications.

Q: What is the difference between the part numbers?

A: The suffix difference (-T versus +T) indicates packaging and compliance variations. The MAX1797EUA+T is supplied in Cut Tape (CT) and Digi-Reel® packaging with ROHS3 compliance, while the MAX1797EUA-T uses standard packaging without RoHS compliance.

Q: Why is MAX1797EUA-T listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The MAX1797EUA+T represents the current active equivalent from the same manufacturer.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and deliver equivalent performance specifications.

Q: What packaging options are available for the substitute part?

A: The MAX1797EUA+T is available in Cut Tape (CT) and Digi-Reel® packaging formats, both using the 8-uMAX/uSOP package configuration.

Q: Is the substitute part suitable for new designs?

A: Yes. The MAX1797EUA+T is classified as active and is the recommended selection for new designs requiring boost converter functionality with the specified electrical characteristics.