MAX629ESA Equivalent & Substitute Parts

Part Overview

The MAX629ESA is a boost, flyback, and SEPIC switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for positive or negative adjustable output configurations. It supports a single output with 500mA current capability and operates across an input voltage range of 2.7V to 5.5V, delivering adjustable output voltages from ±0.8V to ±28V. The device is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity.

Substiute Parts

MAX629ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1558MAX629ESA Datasheet

Current PartRFQ

MAX629ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1992MAX629ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX629ESA is determined by strict equivalence across the following critical parameters:

• Identical topology (Boost, Flyback, SEPIC)
• Matching output configuration (Positive or Negative)
• Equivalent input voltage range (2.7V to 5.5V)
• Equivalent output voltage range (±0.8V to ±28V)
• Matching output current capability (500mA)
• Identical switching frequency (300kHz)
• Compatible package and pinout (8-SOIC)
• Matching operating temperature range (-40°C ~ 85°C)

The MAX629ESA+ meets all substitution criteria as a direct equivalent part from the same manufacturer and product family.

Parameter Comparison

Engineering Selection Recommendations

The MAX629ESA+ is a direct functional equivalent to the MAX629ESA with identical electrical and mechanical specifications. The primary distinction is product lifecycle status: the MAX629ESA is obsolete, while the MAX629ESA+ is active. Additionally, the MAX629ESA+ carries ROHS3 compliance, whereas the original MAX629ESA is RoHS non-compliant. Both parts maintain REACH Unaffected status and identical ECCN/HTSUS classifications.

For new designs or production continuity, the MAX629ESA+ is the appropriate selection due to its active product status and regulatory compliance. Existing designs using the MAX629ESA can transition to the MAX629ESA+ without circuit modification, as all electrical and mechanical parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can MAX629ESA+ be used as a direct replacement for MAX629ESA?

A: Yes. The MAX629ESA+ is electrically and mechanically identical to the MAX629ESA. Both devices share identical input/output voltage ranges, current ratings, switching frequency, operating temperature range, and 8-SOIC package configuration. No circuit redesign is required.

Q: What is the primary reason to substitute MAX629ESA with MAX629ESA+?

A: The MAX629ESA is classified as obsolete, limiting long-term availability. The MAX629ESA+ is an active product from the same manufacturer with identical specifications, ensuring supply continuity and regulatory compliance (ROHS3).

Q: Are there any compliance differences between these parts?

A: Yes. The MAX629ESA+ is ROHS3 compliant, while the MAX629ESA is RoHS non-compliant. Both maintain REACH Unaffected status. For applications requiring RoHS compliance, the MAX629ESA+ is the required selection.

Q: Do these parts have the same pinout and package dimensions?

A: Yes. Both parts use the 8-SOIC package with 0.154" (3.90mm) width. Pinout and footprint are identical, enabling direct PCB substitution.

Q: What is the inventory status of these parts?

A: MAX629ESA has 1500 pieces in stock (obsolete status). MAX629ESA+ has 1900 pieces in stock (active product). For new orders, MAX629ESA+ availability is more reliable due to its active product classification.