MAX1637EEE Buck Regulator Controller IC Equivalent & Substitute Parts

Part Overview

The MAX1637EEE is a buck regulator positive output step-down DC-DC controller IC manufactured by Analog Devices Inc./Maxim Integrated. This 16-QSOP surface mount device functions as a transistor driver for step-down voltage conversion applications with a single output phase. The MAX1637EEE is classified as obsolete product status, making identification of equivalent and substitute parts essential for ongoing design support, production continuity, and system maintenance in applications requiring this controller topology.

Substiute Parts

MAX1637EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 2237MAX1637EEE Datasheet

Current PartRFQ

MAX1637EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 6013MAX1637EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1637EEE is determined by strict equivalence across the following critical parameters:

• Functional Topology: Buck regulator controller with positive output step-down configuration
• Output Characteristics: Single output, single phase, transistor driver output type
• Electrical Specifications: Supply voltage range 3.15V ~ 5.5V, switching frequency 200kHz ~ 300kHz, 96% maximum duty cycle
• Feature Set: Synchronous rectifier capability, clock synchronization, enable control
• Thermal Range: Operating temperature -40°C ~ 85°C
• Physical Form Factor: 16-SSOP surface mount package (0.154", 3.90mm width)

Substitute parts must maintain identical electrical performance across all specified parameters and be compatible with the 16-QSOP package footprint to ensure direct replacement capability in existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

The MAX1637EEE+ serves as the direct substitute for the obsolete MAX1637EEE. Both parts maintain identical electrical specifications and physical form factors, ensuring pin-for-pin compatibility and functional equivalence in buck regulator controller applications.

The primary distinction between these parts is product status and regulatory compliance. The MAX1637EEE is classified as obsolete, while the MAX1637EEE+ maintains active product status with ROHS3 compliance. For new designs or production continuity requiring this buck controller topology, the MAX1637EEE+ is the appropriate selection. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share the same base product number (MAX1637), confirming their functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the MAX1637EEE+ directly replace the MAX1637EEE in existing designs?

A: Yes. The MAX1637EEE+ is a direct substitute with identical electrical specifications, output characteristics, switching frequency, duty cycle, and 16-QSOP package footprint. No circuit modifications are required for substitution.

Q: What is the primary reason to transition from MAX1637EEE to MAX1637EEE+?

A: The MAX1637EEE is classified as obsolete product status. The MAX1637EEE+ maintains active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment for production applications.

Q: Are the pin configurations identical between MAX1637EEE and MAX1637EEE+?

A: Yes. Both parts use the 16-QSOP package with identical pin assignments, enabling direct PCB-level substitution without layout modifications.

Q: Does the MAX1637EEE+ support the same operating temperature range?

A: Yes. Both parts operate across the -40°C ~ 85°C temperature range, maintaining thermal performance equivalence in all specified operating conditions.

Q: What packaging formats are available for these parts?

A: The MAX1637EEE is supplied in standard packaging, while the MAX1637EEE+ is available in tube packaging format. Both maintain the same component specifications and 16-QSOP form factor.