MAX1831EEE Buck Switching Regulator IC

Part Overview

The MAX1831EEE is a buck switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive adjustable output voltage regulation with 3A output current capability. This device operates as a step-down converter with a single output, supporting input voltages from 3V to 5.5V and adjustable output voltages from 1.1V to 5.5V. The part is classified as obsolete, making identification of suitable alternatives necessary for ongoing design support and production continuity.

Substiute Parts

MAX1831EEE

Analog Devices Inc./Maxim IntegratedIn Stock: 2140MAX1831EEE Datasheet

Current PartRFQ

MAX1831EEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2144MAX1831EEE+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX1831EEE is determined by strict equivalence across the following critical parameters:

• Input voltage range: 3V to 5.5V
• Output voltage adjustability: 1.1V to 5.5V with programmable options (1.5V, 2.5V, 3.3V)
• Output current capability: 3A
• Switching frequency: 1MHz
• Synchronous rectifier topology: Yes
• Package type: 16-SSOP (0.154", 3.90mm Width)
• Operating temperature range: -40°C to 85°C
• Mounting type: Surface Mount

The MAX1831EEE+ maintains identical electrical and mechanical specifications while offering improved product status and regulatory compliance, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The MAX1831EEE+ is the direct substitute for the MAX1831EEE. Both parts share identical electrical performance and mechanical specifications. The primary distinction is product lifecycle status and regulatory compliance: the MAX1831EEE is obsolete, while the MAX1831EEE+ maintains active product status. Additionally, the MAX1831EEE+ achieves ROHS3 compliance, whereas the original MAX1831EEE is RoHS non-compliant. Both parts maintain REACH Unaffected status and identical export classification (EAR99). For new designs or production continuity, the MAX1831EEE+ is the appropriate selection due to its active availability and improved regulatory posture.

Frequently Asked Questions (FAQ)

Q: Can MAX1831EEE+ directly replace MAX1831EEE in existing designs?

A: Yes. The MAX1831EEE+ provides identical electrical and mechanical specifications, including input/output voltage ranges, output current capability, switching frequency, package type, and operating temperature range. No circuit modifications are required.

Q: What is the difference between MAX1831EEE and MAX1831EEE+?

A: The primary differences are product status and regulatory compliance. The MAX1831EEE is obsolete and RoHS non-compliant, while the MAX1831EEE+ is active and ROHS3 compliant. Electrical and mechanical performance are identical.

Q: Are there packaging differences between these parts?

A: The MAX1831EEE is supplied in standard packaging, while the MAX1831EEE+ is supplied in Tube packaging. Both use the 16-SSOP (0.154", 3.90mm Width) case. The package footprint and pinout are identical.

Q: Why is the MAX1831EEE marked as obsolete?

A: The MAX1831EEE has reached end-of-life status. The MAX1831EEE+ represents the current active product offering from Analog Devices Inc./Maxim Integrated with the same functionality.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: input voltage range (3V to 5.5V), adjustable output voltage capability (1.1V to 5.5V), output current (3A), switching frequency (1MHz), synchronous rectifier topology, and operating temperature range (-40°C to 85°C).

Q: Is the MAX1831EEE+ suitable for new production designs?

A: Yes. The MAX1831EEE+ is the recommended choice for new designs due to its active product status, ROHS3 compliance, and continued manufacturer support.