MAX641ACPA+ Equivalent & Substitute Parts

Part Overview

The MAX641ACPA+ is a boost switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for step-up voltage conversion applications. This positive output, adjustable/fixed topology device operates with input voltage ranges from 2V to 16.5V and delivers up to 450mA output current at switching frequencies of 45kHz. The component is currently in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications requiring reliable DC-DC boost conversion.

Substiute Parts

MAX641ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1034MAX641ACPA+ Datasheet

Current PartRFQ

MAX641ACPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1034MAX641ACPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the MAX641ACPA+ is determined by strict alignment across the following critical parameters:

Functional Requirements:

• Topology: Boost (Step-Up) switching regulator
• Output Configuration: Positive
• Output Type: Adjustable (Fixed)
• Number of Outputs: Single output

Electrical Specifications:

• Input Voltage Range: 2V to 16.5V minimum/maximum
• Output Voltage Range: 1.31V to 18V minimum/maximum
• Output Current Capability: 450mA (Switch)
• Switching Frequency: 45kHz

Physical & Environmental Constraints:

• Package: 8-DIP (0.300", 7.62mm) through-hole mounting
• Operating Temperature: 0°C to 70°C
• Compliance: RoHS3 Compliant, MSL Level 1

Any substitute part must match all parameters within these categories to ensure functional and mechanical compatibility without design modification.

Parameter Comparison

Engineering Selection Recommendations

The MAX641ACPA+ maintains active product status with full RoHS3 compliance and MSL Level 1 rating, indicating unrestricted moisture handling and long-term availability. The device is certified for REACH compliance and carries EAR99 export classification. Selection of this component or its direct equivalents is appropriate for applications requiring boost regulation within the specified input/output voltage and current parameters. The through-hole 8-DIP package provides standard PCB integration for industrial and commercial designs operating within the 0°C to 70°C temperature range.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX641ACPA+?

A: A valid substitute must match all electrical specifications (input/output voltage ranges, output current, switching frequency), maintain identical boost topology with positive single output configuration, use the same 8-DIP through-hole package, and comply with RoHS3 and MSL Level 1 requirements.

Q: Can the MAX641ACPA+ be replaced with a different package variant?

A: No. Package substitution is not permitted. The 8-DIP (0.300", 7.62mm) through-hole form factor is a critical mechanical constraint. Alternative packages require PCB redesign and are not considered direct substitutes.

Q: Are there voltage or current derating considerations for substitute selection?

A: Substitute parts must operate within the specified ranges: input 2V to 16.5V, output 1.31V to 18V, and output current 450mA. No derating or margin reduction is applicable to substitution criteria.

Q: What is the significance of the 45kHz switching frequency in substitution?

A: The 45kHz switching frequency is a fixed operational parameter. Substitute parts must operate at this identical frequency to maintain circuit performance, EMI characteristics, and component sizing calculations in the original design.

Q: Does the absence of a synchronous rectifier affect substitute compatibility?

A: Yes. The MAX641ACPA+ uses a standard (non-synchronous) rectifier topology. Substitutes must maintain this same rectifier configuration. Synchronous rectifier variants are not compatible without circuit redesign.

Q: Is the operating temperature range 0°C to 70°C a hard requirement for substitutes?

A: Yes. The specified operating temperature range is a mandatory parameter. Substitute parts must support the identical 0°C to 70°C (TA) range. Extended or industrial temperature variants are not direct substitutes.