MAX1761EEE Buck Regulator Controller - Equivalent & Substitute Parts

Part Overview

The MAX1761EEE is a buck regulator positive output step-down DC-DC controller IC in 16-QSOP packaging, designed for power management applications requiring transistor driver output topology. This component operates as a step-down converter with dual outputs and single-phase configuration, supporting supply voltages from 4.5V to 20V with selectable switching frequencies of 250kHz or 350kHz. The MAX1761EEE is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

MAX1761EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 5861MAX1761EEE Datasheet

Current PartRFQ

MAX1761EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2283MAX1761EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1761EEE is determined by strict equivalence across the following critical parameters:

• Functional Topology: Buck regulator with positive output step-down configuration
• Output Architecture: Dual outputs, single-phase, transistor driver output type
• Electrical Specifications: Supply voltage range 4.5V ~ 20V, switching frequencies 250kHz and 350kHz, synchronous rectifier capability
• Thermal Performance: Operating temperature range -40°C ~ 85°C
• Physical Form Factor: 16-SSOP surface mount package with 0.154" (3.90mm) width
• Control Interface: Enable control feature

The MAX1761EEE+ meets all substitution criteria as a direct equivalent, maintaining identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MAX1761EEE+ is the direct functional equivalent for MAX1761EEE applications. Both parts share identical electrical specifications, output architecture, and physical packaging. The primary distinction lies in product lifecycle status and regulatory compliance:

• MAX1761EEE: Obsolete status with RoHS non-compliant certification. Suitable only for legacy system maintenance where existing inventory is available.
• MAX1761EEE+: Active product status with ROHS3 compliance. Recommended for all new designs and production applications requiring current component availability and regulatory alignment.

Selection between these parts is determined by application context: use MAX1761EEE+ for new development and ongoing production; reserve MAX1761EEE only when supporting existing systems with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can MAX1761EEE+ directly replace MAX1761EEE in existing designs?

A: Yes. The MAX1761EEE+ maintains identical electrical specifications, output configuration, switching frequencies, supply voltage range, and 16-QSOP package dimensions. No circuit modifications are required for direct substitution.

Q: What is the primary reason to transition from MAX1761EEE to MAX1761EEE+?

A: The MAX1761EEE is classified as obsolete, creating supply chain risk. The MAX1761EEE+ is an active product offering equivalent functionality with ROHS3 compliance and current manufacturing support.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C ~ 85°C) and support the same switching frequencies (250kHz, 350kHz) and supply voltage specifications (4.5V ~ 20V).

Q: Does the packaging format differ between MAX1761EEE and MAX1761EEE+?

A: Both parts use 16-SSOP surface mount packaging with 0.154" (3.90mm) width. The MAX1761EEE+ is supplied in tube packaging, while the MAX1761EEE packaging format is not specified. PCB footprint and mounting requirements are identical.

Q: Are there compliance or certification differences?

A: Yes. The MAX1761EEE is RoHS non-compliant, while MAX1761EEE+ meets ROHS3 compliance standards. Both parts maintain REACH Unaffected status and EAR99 export classification.