MAX663CSA Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The MAX663CSA is a linear voltage regulator IC from Analog Devices Inc./Maxim Integrated, classified as a Power Management (PMIC) component. It provides positive adjustable (fixed) output regulation with a single output delivering 40mA maximum current. The device is currently listed as obsolete, which necessitates identification of functionally equivalent substitute parts for ongoing design support and procurement planning. The MAX663CSA operates across an input voltage range of up to 16.5V and supports output voltages from 1.3V to 16V with a maximum dropout voltage of 0.9V at 40mA output current.

Substiute Parts

MAX663CSA

Analog Devices Inc./Maxim IntegratedIn Stock: 3623MAX663CSA Datasheet

Current PartRFQ

MAX663CSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1900MAX663CSA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX663CSA 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 (1.3V to 16V)
• Dropout voltage specification (0.9V @ 40mA)
• Output current capacity (40mA)
• Quiescent current (15 µA)
• Control features (current limit and enable functionality)
• Operating temperature range (0°C ~ 70°C)
• Package type (8-SOIC with 3.90mm width)

The MAX663CSA+ is identified as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX663CSA+ is the direct functional equivalent of the MAX663CSA. Both devices share identical electrical and mechanical specifications across all critical parameters. The MAX663CSA+ is preferred for new designs and ongoing procurement due to its active product status and ROHS3 compliance certification. The MAX663CSA is classified as obsolete and carries RoHS non-compliant status, making it unsuitable for applications requiring regulatory compliance or long-term supply chain stability.

For applications currently using the MAX663CSA, transition to the MAX663CSA+ requires no circuit redesign, as pin configuration, electrical performance, and package dimensions are identical. The primary consideration is compliance requirement alignment with target application standards.

Frequently Asked Questions (FAQ)

Q: Can the MAX663CSA+ be used as a direct replacement for the MAX663CSA in existing designs?

A: Yes. The MAX663CSA+ is electrically and mechanically identical to the MAX663CSA. No circuit modifications are required for substitution. Both devices feature the same 8-SOIC package, identical pin configuration, and matching electrical specifications including output voltage range, dropout voltage, and current capacity.

Q: What is the primary difference between the MAX663CSA and MAX663CSA+?

A: The MAX663CSA+ is the active production variant with ROHS3 compliance certification. The MAX663CSA is obsolete and RoHS non-compliant. All electrical and mechanical parameters are identical.

Q: Are there any package or form factor differences between these parts?

A: Both parts use the 8-SOIC package with 0.154" (3.90mm) width. The MAX663CSA+ is supplied in tube packaging, while the MAX663CSA packaging specification is not detailed. The physical footprint and pin layout are identical.

Q: What compliance certifications apply to the MAX663CSA+?

A: The MAX663CSA+ is ROHS3 compliant and REACH unaffected. It carries ECCN classification EAR99 and HTSUS code 8542.39.0001.

Q: Is the MAX663CSA+ suitable for new product designs?

A: Yes. The MAX663CSA+ is the recommended choice for new designs. It is an active product with current manufacturing support and regulatory compliance certifications required for most commercial and industrial applications.