MAX1685EEE Equivalent & Substitute Parts

Part Overview

The MAX1685EEE is a buck switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for step-down voltage conversion with positive adjustable/fixed output. It delivers 1A output current with input voltage range of 2.7V to 14V and operates at 600kHz switching frequency. The device features a synchronous rectifier and is housed in a 16-SSOP package.

The MAX1685EEE is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

MAX1685EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 10383MAX1685EEE Datasheet

Current PartRFQ

MAX1685EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 3483MAX1685EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX1685EEE are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

• Topology & Function: Buck switching regulator with step-down conversion
• Output Configuration: Single positive output, adjustable/fixed voltage capability
• Electrical Specifications: Input voltage range 2.7V–14V, output current 1A, switching frequency 600kHz
• Synchronous Rectification: Integrated synchronous rectifier required
• Package Compatibility: 16-SSOP surface mount package with identical pinout and mechanical dimensions
• Operating Temperature Range: -40°C to 85°C

The MAX1685EEE+ meets all these criteria and is classified as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The MAX1685EEE+ is the direct substitute for the MAX1685EEE. Both parts are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance.

The MAX1685EEE is obsolete, whereas the MAX1685EEE+ maintains active product status. The MAX1685EEE+ achieves ROHS3 compliance, compared to the non-compliant status of the original part. Both devices carry MSL Level 1 (unlimited moisture sensitivity) and REACH Unaffected classification.

For new designs or ongoing production requiring this buck regulator topology, the MAX1685EEE+ is the appropriate selection due to its active availability and regulatory compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the MAX1685EEE+ directly replace the MAX1685EEE in existing designs?

A: Yes. The MAX1685EEE+ is electrically and mechanically identical to the MAX1685EEE. All electrical parameters, package dimensions, pinout, and thermal specifications are equivalent. Direct substitution is supported without circuit modification.

Q: What is the primary reason to transition from MAX1685EEE to MAX1685EEE+?

A: The MAX1685EEE is obsolete with no ongoing production. The MAX1685EEE+ is actively manufactured and available. Additionally, the MAX1685EEE+ meets ROHS3 compliance requirements, whereas the original part does not.

Q: Are there packaging differences between these parts?

A: Both parts use the 16-SSOP (0.154", 3.90mm Width) surface mount package. The MAX1685EEE+ is supplied in Tube packaging, while the original part packaging is not specified. The physical package and pinout are identical.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both the MAX1685EEE and MAX1685EEE+ are classified as MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are there any compliance or certification differences?

A: The MAX1685EEE+ is ROHS3 compliant, whereas the MAX1685EEE is RoHS non-compliant. Both parts maintain REACH Unaffected status. For applications requiring RoHS compliance, the MAX1685EEE+ is the required selection.