MAX1703ESE Equivalent & Substitute Parts

Part Overview

The MAX1703ESE is a boost switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive adjustable/fixed output voltage regulation. This Power Management (PMIC) device delivers 2.2A switch current with a single output configuration and operates across an input voltage range of 0.7V to 5.5V. The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX1703ESE

Analog Devices Inc./Maxim IntegratedIn Stock: 2189MAX1703ESE Datasheet

Current PartRFQ

MAX1703ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2357MAX1703ESE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1703ESE is determined by strict equivalence across the following critical parameters:

• Topology & Function: Boost switching regulator with step-up configuration
• Output Configuration: Single positive output, adjustable/fixed voltage capability
• Electrical Specifications: Input voltage range 0.7V–5.5V, output voltage 2.5V–5.5V, 2.2A switch current
• Switching Frequency: 300kHz operation
• Synchronous Rectifier: Integrated synchronous rectification capability
• Package: 16-SOIC surface mount form factor
• Temperature Range: -40°C to 85°C operating specification

The MAX1703ESE+ meets all substitution criteria as a direct equivalent, maintaining identical electrical performance and mechanical compatibility while offering improved product status and compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The MAX1703ESE+ is a direct functional and mechanical equivalent to the MAX1703ESE. Both devices share identical electrical specifications, switching characteristics, and 16-SOIC package geometry, ensuring pin-for-pin compatibility and circuit-level interchangeability.

The MAX1703ESE+ offers two significant advantages over the original part:

Product Status: The MAX1703ESE+ maintains active product status, ensuring continued manufacturer support, availability, and technical documentation access. The MAX1703ESE is classified as obsolete, limiting long-term supply reliability.

Regulatory Compliance: The MAX1703ESE+ is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. The MAX1703ESE is RoHS non-compliant, which may present procurement and regulatory challenges in applications subject to RoHS directives.

Both parts maintain identical moisture sensitivity classification (MSL 1) and REACH status, with no impact on handling or environmental considerations.

Frequently Asked Questions (FAQ)

Q: Can MAX1703ESE+ be used as a direct replacement for MAX1703ESE in existing designs?

A: Yes. The MAX1703ESE+ is electrically and mechanically equivalent. All electrical parameters, switching frequency, output current capability, and voltage specifications are identical. The 16-SOIC package dimensions are unchanged, ensuring PCB layout compatibility without modification.

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

A: The MAX1703ESE is classified as obsolete, indicating Analog Devices has discontinued active production and support. The MAX1703ESE+ is active, meaning the manufacturer continues production, maintains technical documentation, and provides ongoing supply. For new designs or long-term production requirements, the active status of MAX1703ESE+ provides supply chain stability.

Q: Are there compliance differences between MAX1703ESE and MAX1703ESE+?

A: Yes. The MAX1703ESE+ is ROHS3 compliant, meeting Restriction of Hazardous Substances directives. The MAX1703ESE is RoHS non-compliant. If your application or region requires RoHS compliance, MAX1703ESE+ is the appropriate selection. Both parts are REACH unaffected and maintain identical moisture sensitivity levels.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts share identical moisture sensitivity level (MSL 1, unlimited), requiring no special moisture control during storage or handling. Standard ESD precautions for surface mount components apply to both variants.

Q: Is the packaging format different between these parts?

A: The MAX1703ESE is supplied in standard packaging, while MAX1703ESE+ is supplied in tube packaging. Both contain identical die and electrical performance. Tube packaging may offer advantages for automated assembly processes but does not affect electrical or mechanical compatibility.