MAX1687ESA Equivalent & Substitute Parts

Part Overview

The MAX1687ESA is a boost switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for positive adjustable voltage regulation in power management applications. This device functions as a step-up converter with a single adjustable output, capable of delivering 730mA at switching frequencies of 1MHz. The MAX1687ESA is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

MAX1687ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2290MAX1687ESA Datasheet

Current PartRFQ

MAX1687ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 786MAX1687ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1687ESA is determined by strict equivalence across the following critical parameters:

• Topology & Function: Boost (step-up) switching regulator configuration
• Output Characteristics: Positive adjustable output with 1.25V minimum and 6V maximum voltage capability
• Current Rating: 730mA switch current capacity
• Electrical Performance: 1MHz switching frequency with synchronous rectifier implementation
• Input Voltage Compatibility: 2.7V to 6V input range
• Package Compatibility: 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm width)
• Temperature Range: -40°C to 85°C operating specification

The MAX1687ESA+ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1687ESA+ is the appropriate substitute for the obsolete MAX1687ESA. Both devices share identical electrical specifications, package configuration, and thermal operating range, ensuring direct functional compatibility in boost regulator applications.

The MAX1687ESA+ offers the advantage of active product status, ensuring continued manufacturer support and availability. Additionally, the MAX1687ESA+ meets ROHS3 compliance requirements, whereas the original MAX1687ESA is RoHS non-compliant. For new designs or production continuity requiring regulatory compliance, the MAX1687ESA+ is the specified replacement.

Both parts maintain equivalent moisture sensitivity levels and REACH compliance status. No design modifications are required when transitioning from MAX1687ESA to MAX1687ESA+.

Frequently Asked Questions (FAQ)

Q: Can MAX1687ESA+ be used as a direct replacement for MAX1687ESA?

A: Yes. The MAX1687ESA+ is electrically and mechanically identical to the MAX1687ESA. Both devices feature identical input/output voltage ranges (2.7V to 6V input, 1.25V to 6V output), 730mA output current capability, 1MHz switching frequency, and 8-SOIC package configuration. No circuit modifications are required.

Q: What is the primary difference between MAX1687ESA and MAX1687ESA+?

A: The MAX1687ESA is classified as obsolete, while the MAX1687ESA+ maintains active product status. The MAX1687ESA+ also meets ROHS3 compliance standards, whereas the MAX1687ESA is RoHS non-compliant. Electrical performance and package specifications are identical.

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

A: No. Both the MAX1687ESA and MAX1687ESA+ use the 8-SOIC surface mount package with identical physical dimensions (0.154" width, 3.90mm). Pinout and PCB footprint compatibility is guaranteed.

Q: What applications are suitable for the MAX1687ESA / MAX1687ESA+?

A: These boost regulators are designed for applications requiring positive adjustable voltage step-up conversion within the 2.7V to 6V input range, with output capability up to 6V at 730mA. Typical applications include battery-powered systems, portable electronics, and low-voltage to higher-voltage conversion circuits.

Q: Is the MAX1687ESA+ available in different packaging options?

A: The MAX1687ESA+ is supplied in tube packaging. The MAX1687ESA was supplied without specified packaging designation. Both maintain the 8-SOIC case format for surface mount assembly.