MAX1673ESA Equivalent & Substitute Parts

Part Overview

The MAX1673ESA is a charge pump switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for negative voltage regulation applications. This component generates adjustable negative output voltages ranging from -1.5V to -5.5V with a maximum output current of 125mA. The device operates across an input voltage range of 2V to 5.5V and features a switching frequency of 350kHz.

The MAX1673ESA is classified as obsolete, which necessitates identification of equivalent substitute components for new designs or ongoing production requirements. Active alternatives with identical electrical and mechanical specifications are available to ensure design continuity and supply chain reliability.

Substiute Parts

MAX1673ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 5884MAX1673ESA Datasheet

Current PartRFQ

MAX1673ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3484MAX1673ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1673ESA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

• Identical input voltage range: 2V to 5.5V
• Identical output voltage range: -1.5V to -5.5V
• Identical output current capability: 125mA
• Identical switching frequency: 350kHz
• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Identical operating temperature range: -40°C to 85°C
• Identical topology: Charge pump with negative output configuration
• Identical number of outputs: 1 adjustable output

The MAX1673ESA+ meets all substitution criteria as a direct equivalent from the same manufacturer with identical electrical specifications and mechanical packaging.

Parameter Comparison

Engineering Selection Recommendations

The MAX1673ESA+ is the direct substitute for the obsolete MAX1673ESA. Both components share identical electrical specifications and mechanical packaging, ensuring pin-for-pin and functional compatibility.

The primary distinction between these parts is product status and regulatory compliance. The MAX1673ESA+ maintains active production status with ROHS3 compliance, whereas the original MAX1673ESA is obsolete and RoHS non-compliant. For new designs or production continuity, the MAX1673ESA+ is the appropriate selection.

Both components maintain identical moisture sensitivity levels (MSL 1) and REACH status, confirming equivalent handling and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX1673ESA+ be used as a direct replacement for MAX1673ESA?

A: Yes. The MAX1673ESA+ is a direct substitute with identical electrical specifications, output characteristics, and 8-SOIC packaging. No circuit modifications are required.

Q: What is the difference between MAX1673ESA and MAX1673ESA+?

A: The primary differences are product status and regulatory compliance. The MAX1673ESA is obsolete and RoHS non-compliant, while the MAX1673ESA+ is active production and ROHS3 compliant. All electrical and mechanical parameters are identical.

Q: Are there any package differences between these parts?

A: No. Both components use the 8-SOIC (0.154", 3.90mm Width) package with identical pinout and mechanical dimensions.

Q: What output voltage range does this regulator support?

A: The MAX1673ESA and MAX1673ESA+ generate adjustable negative output voltages from -1.5V to -5.5V with a maximum output current of 125mA.

Q: What is the input voltage operating range?

A: Both components operate with input voltages between 2V and 5.5V.

Q: Is the MAX1673ESA+ suitable for new designs?

A: Yes. The MAX1673ESA+ is in active production status and recommended for all new designs requiring negative voltage regulation with the specified electrical and mechanical characteristics.