MAX1659ESA Equivalent & Substitute Parts

Part Overview

The MAX1659ESA is a linear voltage regulator IC from Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) device. It provides positive adjustable (fixed) output regulation with a maximum output current of 350mA in an 8-SOIC surface mount package. The device features integrated protection against overcurrent, overtemperature, and reverse polarity conditions, with an enable control feature for power management applications.

The MAX1659ESA is currently listed as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this regulator.

Substiute Parts

MAX1659ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1984MAX1659ESA Datasheet

Current PartRFQ

MAX1659ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 30305MAX1659ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1659ESA is determined by strict equivalence across the following critical parameters:

• Output configuration (positive regulation)
• Output type (adjustable/fixed capability)
• Single regulator topology
• Input voltage range (maximum 16.5V)
• Output voltage range (1.25V to 16V)
• Dropout voltage specification (0.875V @ 350mA)
• Output current capability (350mA)
• Quiescent current (60 µA)
• Protection features (overcurrent, overtemperature, reverse polarity)
• Operating temperature range (-40°C to 85°C)
• Package type (8-SOIC surface mount)

The MAX1659ESA+ meets all these criteria and is therefore a direct functional equivalent. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1659ESA+ is the direct substitute for the MAX1659ESA. Both devices are electrically and mechanically identical across all functional parameters. The MAX1659ESA+ is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The MAX1659ESA is obsolete and no longer recommended for selection.

For applications requiring the MAX1659ESA, transition to the MAX1659ESA+ to ensure long-term supply availability and regulatory compliance with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the MAX1659ESA+ directly replace the MAX1659ESA in existing designs?

A: Yes. The MAX1659ESA+ is electrically and mechanically equivalent to the MAX1659ESA. All electrical parameters, output characteristics, protection features, and package dimensions are identical. Direct substitution is possible without circuit modification.

Q: What is the difference between MAX1659ESA and MAX1659ESA+?

A: The primary differences are product status and compliance. The MAX1659ESA is obsolete, while the MAX1659ESA+ is active. The MAX1659ESA+ is ROHS3 compliant, whereas the MAX1659ESA is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both devices use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and mechanical dimensions. PCB layout and footprints are interchangeable.

Q: Why is the MAX1659ESA listed as obsolete?

A: The MAX1659ESA has been discontinued by the manufacturer. The MAX1659ESA+ is the active replacement part and should be used for all new designs and production.

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

A: Substitution compatibility is determined by matching output configuration (positive), output type (adjustable/fixed), input voltage range (16.5V maximum), output voltage range (1.25V to 16V), dropout voltage (0.875V @ 350mA), output current (350mA), quiescent current (60 µA), protection features (overcurrent, overtemperature, reverse polarity), and operating temperature range (-40°C to 85°C).