MAX665CPA+ Equivalent & Substitute Parts

Part Overview

The MAX665CPA+ is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring voltage inversion or doubling. This device generates either negative voltage (-Vin) or doubled positive voltage (2Vin) from a single positive input supply, delivering up to 100mA output current in an 8-DIP through-hole package.

The MAX665CPA+ carries a "Not For New Designs" product status, indicating that Analog Devices has discontinued active development and support for this component. This status necessitates identifying functionally equivalent alternatives for new circuit designs or when inventory becomes unavailable.

Substiute Parts

MAX665CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 12356MAX665CPA+ Datasheet

Current PartRFQ

MAX665CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 12356MAX665CPA+ Datasheet

DirectRFQ

LMC7660IN/NOPB

Texas InstrumentsIn Stock: 4286LMC7660IN/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX665CPA+ is determined by the following critical parameters:

• Topology: Must be charge pump architecture
• Package: Must be 8-DIP (0.300", 7.62mm) through-hole configuration
• Output Configuration: Must support negative voltage generation (-Vin)
• Input Voltage Range: Must accommodate 1.5V to 8V input
• Output Current: Must deliver minimum 100mA
• Switching Frequency: Must operate at 10kHz or compatible frequency
• Compliance: Must maintain ROHS3 compliance

The LMC7660IN/NOPB from Texas Instruments qualifies as a direct substitute based on matching topology, package, output configuration, input voltage range, switching frequency, and compliance certifications. However, the LMC7660IN/NOPB is limited to negative output configuration only (-Vin), whereas the MAX665CPA+ supports both negative and positive doubled output modes.

Parameter Comparison

Engineering Selection Recommendations

The LMC7660IN/NOPB is suitable as a substitute for applications requiring negative voltage generation (-Vin output) only. Both devices maintain ROHS3 compliance and operate within compatible input voltage ranges for most applications up to 8V.

The LMC7660IN/NOPB carries "Active" product status, ensuring continued manufacturer support, availability, and compliance updates. This status advantage makes it the preferred choice for new designs requiring negative voltage inversion functionality.

For applications requiring the positive voltage doubling mode (2Vin output), the LMC7660IN/NOPB is not suitable. In such cases, alternative charge pump regulators supporting dual output configuration must be evaluated.

Frequently Asked Questions (FAQ)

Q: Can the LMC7660IN/NOPB directly replace the MAX665CPA+ in all applications?

A: The LMC7660IN/NOPB is a direct substitute only for circuits using the negative voltage output (-Vin) configuration. If your design requires the positive voltage doubling mode (2Vin), the LMC7660IN/NOPB cannot be used without circuit redesign.

Q: Are the package dimensions identical between these parts?

A: Yes. Both the MAX665CPA+ and LMC7660IN/NOPB use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin spacing and footprint compatibility.

Q: What is the difference in input voltage handling between these devices?

A: The MAX665CPA+ accepts input voltages from 1.5V to 8V, while the LMC7660IN/NOPB accepts 1.5V to 10V. The LMC7660IN/NOPB provides extended input voltage range capability for higher supply voltages.

Q: Why is the MAX665CPA+ marked "Not For New Designs"?

A: This designation indicates that Analog Devices has concluded active development and support for this product line. New designs should utilize active alternatives such as the LMC7660IN/NOPB to ensure long-term availability and manufacturer support.

Q: Are both devices RoHS compliant?

A: Yes. Both the MAX665CPA+ and LMC7660IN/NOPB are ROHS3 compliant and suitable for applications requiring RoHS certification.