MAX5003EEE Equivalent & Substitute Parts

Part Overview

The MAX5003EEE is a buck regulator controller IC manufactured by Analog Devices Inc./Maxim Integrated, designed for step-down DC-DC conversion applications. This device functions as a transistor driver for positive, isolation-capable output configurations with a single output phase. The MAX5003EEE is classified as obsolete, making identification of suitable substitute components necessary for ongoing system support and new procurement activities.

Substiute Parts

MAX5003EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 2904MAX5003EEE Datasheet

Current PartRFQ

MAX5003EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1644MAX5003EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5003EEE is determined by strict equivalence across the following critical parameters:

• Topology & Function: Buck regulator controller with step-down DC-DC conversion capability
• Output Configuration: Positive, isolation-capable output with single-phase, single-output architecture
• Electrical Specifications: Supply voltage range 10.75V ~ 18.75V, switching frequency 50kHz ~ 300kHz, maximum duty cycle 75%
• Control Architecture: Frequency control, on-time control, and soft-start functionality
• Package Compatibility: 16-SSOP surface-mount package with 0.154" width (3.90mm)
• Environmental & Compliance: Operating temperature -40°C ~ 85°C, ROHS3 compliance, MSL Level 1

The substitute part MAX5003EEE+ maintains identical electrical and mechanical specifications, differing only in product status classification and packaging format (tube vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The MAX5003EEE+ serves as a direct functional equivalent to the MAX5003EEE. Both parts share identical electrical characteristics, control features, and package specifications. The primary distinction lies in product lifecycle status: the MAX5003EEE is classified as obsolete, while the MAX5003EEE+ is designated as not for new designs.

For applications currently utilizing the MAX5003EEE, the MAX5003EEE+ provides electrical and mechanical compatibility. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent environmental performance across the specified operating temperature range of -40°C to 85°C.

Packaging format differs between the two variants: MAX5003EEE+ is supplied in tube packaging, whereas the original MAX5003EEE uses standard packaging. This distinction affects handling and storage procedures but does not impact functional performance or circuit-level compatibility.

Frequently Asked Questions (FAQ)

Q: Are MAX5003EEE and MAX5003EEE+ electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications including supply voltage range (10.75V ~ 18.75V), switching frequency capability (50kHz ~ 300kHz), duty cycle rating (75%), and control feature set (frequency control, on-time control, soft start).

Q: What is the significance of the product status difference between these parts?

A: MAX5003EEE is classified as obsolete, indicating end-of-life status. MAX5003EEE+ is designated as not for new designs, reflecting a later lifecycle phase. Both statuses indicate limited availability and recommend evaluation of alternative solutions for new development programs.

Q: Are the package dimensions identical between MAX5003EEE and MAX5003EEE+?

A: Yes. Both parts use the 16-SSOP package with 0.154" width (3.90mm). PCB footprints and mounting requirements are identical. The packaging format difference (tube vs. standard) affects component delivery and handling but not physical dimensions or circuit compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MAX5003EEE and MAX5003EEE+ are ROHS3 compliant with MSL Level 1 (unlimited moisture sensitivity). Environmental and regulatory compliance is equivalent across both variants.

Q: Can MAX5003EEE+ be used as a direct replacement in existing MAX5003EEE applications?

A: Yes, provided that the application circuit design and PCB layout accommodate the 16-SSOP package format. No circuit modifications are required due to identical electrical specifications and pin configurations.