MAX660CPA Equivalent & Substitute Parts

Part Overview

The MAX660CPA is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring positive or negative fixed voltage outputs. This device operates as a ratiometric regulator with a single output capable of delivering 100mA across an input voltage range of 1.5V to 5.5V. The MAX660CPA is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX660CPA

Analog Devices Inc./Maxim IntegratedIn Stock: 8713MAX660CPA Datasheet

Current PartRFQ

MAX660CPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 25396MAX660CPA+ Datasheet

DirectRFQ

LMC7660IN/NOPB

Texas InstrumentsIn Stock: 4286LMC7660IN/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX660CPA is determined by the following critical parameters:

Primary Substitution Criteria:

• Topology: Charge Pump
• Package / Case: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Output Configuration: Positive or Negative (or Negative only)
• Output Type: Fixed
• Number of Outputs: 1

Secondary Compatibility Parameters:

• Voltage - Input range must encompass or match the original 1.5V to 5.5V specification
• Current - Output: 100mA or greater
• Frequency - Switching: 10kHz or 80kHz operation

Substitute parts must maintain identical or superior electrical performance within the specified input voltage range and output current capacity. Package compatibility ensures direct PCB integration without layout modifications.

Parameter Comparison

Engineering Selection Recommendations

MAX660CPA+ (Direct Substitute - Recommended)

The MAX660CPA+ is the primary substitute for the obsolete MAX660CPA. Both devices share identical electrical specifications, including input voltage range (1.5V to 5.5V), output current (100mA), switching frequency (10kHz, 80kHz), and package configuration (8-DIP). The MAX660CPA+ maintains active product status and achieves ROHS3 compliance, addressing regulatory requirements for new designs. Packaging is specified as Tube format with 25,300 units in stock, ensuring supply availability. This part provides direct functional equivalence with improved compliance posture.

LMC7660IN/NOPB (Alternative Substitute - Limited Scope)

The LMC7660IN/NOPB, manufactured by Texas Instruments, is a charge pump regulator in identical 8-DIP packaging. This device supports the same input voltage minimum (1.5V) but extends the maximum input voltage to 10V, providing broader input range capability. However, the LMC7660IN/NOPB is limited to negative output configuration (-Vin only), whereas the MAX660CPA supports both positive and negative outputs (-Vin, 2Vin). This limitation restricts its use to applications requiring only negative voltage generation. The device maintains ROHS3 compliance and active product status. Output current and operating temperature specifications are not provided in available documentation.

Selection Criteria:

For applications requiring both positive and negative output capability, the MAX660CPA+ is the appropriate selection. For applications requiring only negative voltage output with extended input voltage range (up to 10V), the LMC7660IN/NOPB is suitable. Both alternatives maintain through-hole 8-DIP package compatibility, ensuring direct PCB integration without layout modification.

Frequently Asked Questions (FAQ)

Q: Why is the MAX660CPA obsolete, and what are the implications?

A: The MAX660CPA has reached end-of-life status with the manufacturer. Obsolete components are no longer manufactured or supported. The MAX660CPA+ provides direct functional replacement with active product status and improved compliance certifications.

Q: Can the MAX660CPA+ be used as a direct replacement without PCB modifications?

A: Yes. The MAX660CPA+ shares identical electrical specifications and 8-DIP package configuration with the MAX660CPA. Pin-for-pin compatibility and functional equivalence enable direct substitution without PCB layout changes.

Q: What is the key difference between MAX660CPA+ and LMC7660IN/NOPB?

A: The MAX660CPA+ supports both positive and negative output configurations (-Vin, 2Vin), while the LMC7660IN/NOPB is limited to negative output only (-Vin). The LMC7660IN/NOPB extends maximum input voltage to 10V compared to 5.5V for the MAX660CPA+. Selection depends on output configuration requirements.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the MAX660CPA+ and LMC7660IN/NOPB achieve ROHS3 compliance, meeting current regulatory requirements for electronic components in most markets.

Q: What is the package compatibility between these parts?

A: All three parts (MAX660CPA, MAX660CPA+, and LMC7660IN/NOPB) use 8-DIP (0.300", 7.62mm) through-hole packaging. This ensures mechanical and electrical compatibility for direct PCB integration.

Q: Is output current specification available for the LMC7660IN/NOPB?

A: Output current is not specified in the provided technical documentation for the LMC7660IN/NOPB. The MAX660CPA and MAX660CPA+ both specify 100mA output current. Consult the LMC7660IN/NOPB datasheet for detailed current specifications before selection for current-critical applications.

Q: What switching frequencies are supported by each part?

A: The MAX660CPA and MAX660CPA+ support both 10kHz and 80kHz switching frequencies. The LMC7660IN/NOPB operates at 10kHz. Application requirements for switching frequency should guide selection between these alternatives.