MAX5033AASA-T Equivalent & Substitute Parts

Part Overview

The MAX5033AASA-T is a buck switching regulator IC manufactured by Analog Devices Inc./Maxim Integrated, designed for step-down voltage conversion applications. It delivers a fixed 3.3V output at 500mA from input voltages ranging from 7.5V to 76V, operating at a switching frequency of 125kHz. The device is housed in an 8-SOIC surface mount package with a width of 0.154" (3.90mm).

The MAX5033AASA-T carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this regulator.

Substiute Parts

MAX5033AASA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1030MAX5033AASA-T Datasheet

Current PartRFQ

MAX5033AASA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3628MAX5033AASA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX5033AASA-T is determined by strict equivalence across the following critical parameters:

• Output Voltage: Fixed 3.3V output
• Output Current Capability: 500mA minimum
• Input Voltage Range: 7.5V to 76V
• Topology: Buck (step-down) switching regulator
• Package: 8-SOIC surface mount form factor
• Operating Temperature Range: -40°C to 125°C (TJ)
• Switching Frequency: 125kHz
• Synchronous Rectifier Configuration: Non-synchronous

The substitute part MAX5033AASA+T meets all electrical and mechanical parameters required for direct substitution. The difference between these part numbers relates to packaging format and product status, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MAX5033AASA+T is the direct functional equivalent to the MAX5033AASA-T. Both devices are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications, package geometry, and thermal characteristics.

The primary distinction is product status: the MAX5033AASA-T is classified as Obsolete, while the MAX5033AASA+T maintains Active status with current manufacturing support. The MAX5033AASA+T is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, providing improved supply chain availability compared to the obsolete variant.

Both parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels (MSL 1 - Unlimited), ensuring regulatory and environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can MAX5033AASA+T be used as a direct replacement for MAX5033AASA-T?

A: Yes. Both parts are electrically and mechanically identical. They deliver the same 3.3V fixed output at 500mA, operate across the same 7.5V to 76V input range, and are housed in the same 8-SOIC package. The primary difference is product status and packaging format.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The MAX5033AASA-T is classified as Obsolete, indicating discontinued manufacturing. The MAX5033AASA+T maintains Active status with ongoing production support. For new designs or ongoing production requirements, the Active part number ensures long-term supply chain reliability.

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

A: No. Both parts operate across the identical temperature range (-40°C to 125°C junction temperature) and maintain the same switching frequency (125kHz), output current capability (500mA), and input voltage specifications.

Q: What is the difference between the packaging formats (Tube vs. Cut Tape/Digi-Reel)?

A: Tube packaging is used for the obsolete MAX5033AASA-T variant. The MAX5033AASA+T is supplied in Cut Tape (CT) and Digi-Reel® formats, which are standard for active production components and provide improved handling and automated assembly compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the MAX5033AASA-T and MAX5033AASA+T are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). They meet the same regulatory and environmental requirements.