MAX5033BUSA-T Equivalent & Substitute Parts

Part Overview

The MAX5033BUSA-T is a buck switching regulator IC from Analog Devices Inc./Maxim Integrated, designed for step-down voltage conversion with a fixed 5V output at 500mA output current. This device operates across a wide input voltage range of 7.5V to 76V and features a 125kHz switching frequency in an 8-SOIC surface mount package.

The MAX5033BUSA-T is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

MAX5033BUSA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 880MAX5033BUSA-T Datasheet

Current PartRFQ

MAX5033BUSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1951MAX5033BUSA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX5033BUSA-T is determined by strict equivalence across the following critical parameters:

• Function: Step-down buck topology
• Output voltage: Fixed 5V
• Output current capability: 500mA minimum
• Input voltage range: 7.5V to 76V minimum
• Switching frequency: 125kHz
• Package type: 8-SOIC surface mount
• Synchronous rectifier configuration: Non-synchronous
• Operating temperature range: 0°C to 85°C minimum
• Regulatory compliance: ROHS3 Compliant

The MAX5033BUSA+T qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is packaging format: the substitute is supplied in Tape & Reel (TR) format versus the original part's standard packaging, and product status transition from obsolete to active.

Parameter Comparison

Engineering Selection Recommendations

The MAX5033BUSA+T is a direct functional equivalent to the MAX5033BUSA-T. Both parts share identical electrical specifications, thermal operating range, and package geometry. The substitute part maintains ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

The primary consideration for selection is product status: the MAX5033BUSA+T is classified as active, providing assured long-term availability and supply chain stability compared to the obsolete status of the original part. The packaging format difference (Tape & Reel versus standard) does not affect electrical performance or mechanical compatibility in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can MAX5033BUSA+T be used as a direct replacement for MAX5033BUSA-T?

A: Yes. Both parts are electrically identical across all specified parameters: 5V fixed output, 500mA output current, 7.5V to 76V input range, 125kHz switching frequency, and 8-SOIC package configuration. No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. MAX5033BUSA-T uses standard packaging, while MAX5033BUSA+T is supplied in Tape & Reel (TR) format. Additionally, MAX5033BUSA+T has active product status, ensuring ongoing availability.

Q: Are there any thermal or operating condition differences?

A: No. Both parts operate across the identical temperature range of 0°C to 85°C and maintain the same thermal characteristics.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel is a supply format for automated assembly processes. The component itself is identical, and electrical performance is unaffected.

Q: Are both parts RoHS compliant?

A: Yes. Both MAX5033BUSA-T and MAX5033BUSA+T are ROHS3 compliant with MSL Level 1 rating.

Q: Why is the original part marked as obsolete?

A: Obsolescence typically reflects manufacturer discontinuation of a specific packaging or supply format. The MAX5033BUSA+T represents the active continuation of this regulator design.