MAX665CWE Equivalent & Substitute Parts

Part Overview

The MAX665CWE is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed output voltage generation. This device operates as a ratiometric regulator with a single output capable of delivering 100mA across an input voltage range of 1.5V to 8V. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design considerations.

Substiute Parts

MAX665CWE

Analog Devices Inc./Maxim IntegratedIn Stock: 4878MAX665CWE Datasheet

Current PartRFQ

MAX665CWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 826MAX665CWE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX665CWE is determined by strict equivalence across the following critical parameters:

• Topology: Charge Pump (mandatory)
• Output Configuration: Positive or Negative (mandatory)
• Output Type: Fixed (mandatory)
• Number of Outputs: 1 (mandatory)
• Voltage - Input Range: 1.5V to 8V (mandatory)
• Voltage - Output: -Vin, 2Vin (mandatory)
• Current - Output: 100mA (mandatory)
• Frequency - Switching: 10kHz, 45kHz (mandatory)
• Package / Case: 16-SOIC (0.295", 7.50mm Width) (mandatory)
• Mounting Type: Surface Mount (mandatory)

The MAX665CWE+ qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. Both devices share identical functional characteristics, input/output voltage ranges, current capacity, switching frequency options, and package configuration.

Parameter Comparison

Engineering Selection Recommendations

The MAX665CWE+ provides functional equivalence to the MAX665CWE across all electrical and mechanical parameters. The primary distinction between these parts lies in product lifecycle status and regulatory compliance:

The MAX665CWE is classified as obsolete, indicating end-of-life status with no further manufacturing or support. The MAX665CWE+ carries a "Not For New Designs" designation, reflecting a later lifecycle phase with continued availability but limited future support.

From a compliance perspective, the MAX665CWE+ achieves ROHS3 compliance, whereas the original MAX665CWE is RoHS non-compliant. Both devices maintain REACH Unaffected status and EAR99 export classification.

For applications requiring ongoing component availability and regulatory alignment with modern environmental standards, the MAX665CWE+ represents the appropriate selection. Both parts maintain identical electrical performance characteristics and package compatibility, ensuring direct substitution at the circuit level.

Frequently Asked Questions (FAQ)

Q: Can MAX665CWE+ be used as a direct replacement for MAX665CWE in existing designs?

A: Yes. The MAX665CWE+ is electrically and mechanically equivalent to the MAX665CWE. All functional parameters, voltage specifications, current ratings, switching frequencies, and package dimensions are identical. Pin-for-pin compatibility is maintained.

Q: What is the significance of the product status difference between these parts?

A: MAX665CWE is classified as obsolete, indicating discontinued manufacturing. MAX665CWE+ is marked "Not For New Designs," meaning it remains available but with limited future support. For long-term supply chain planning, MAX665CWE+ offers better availability assurance.

Q: Does the RoHS compliance difference affect circuit functionality?

A: No. RoHS compliance status reflects manufacturing process and material composition standards, not electrical performance. Both devices function identically within their specified operating parameters. The ROHS3 compliance of MAX665CWE+ aligns with current environmental regulations.

Q: Are the package dimensions identical between MAX665CWE and MAX665CWE+?

A: Yes. Both devices use 16-SOIC packaging with 0.295" width and 7.50mm body width. PCB footprints and assembly processes are identical.

Q: What are the critical parameters that define substitution eligibility for this device category?

A: Substitution requires equivalence across topology (charge pump), output configuration (positive or negative), output type (fixed), number of outputs (1), input voltage range (1.5V to 8V), output voltage levels (-Vin, 2Vin), output current (100mA), switching frequency (10kHz, 45kHz), and package type (16-SOIC surface mount).