PI3323-00-LGMZ Equivalent & Substitute Parts

Part Overview

The PI3323-00-LGMZ is a buck switching regulator IC manufactured by Vicor Corporation, designed for step-down voltage conversion applications. This positive fixed 3.3V output device delivers 22A continuous current and operates across a 14V to 42V input voltage range. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The obsolete status requires engineers to evaluate available substitute components that maintain electrical and mechanical compatibility with existing designs.

Substiute Parts

PI3323-00-LGMZ

Vicor CorporationIn Stock: 1200PI3323-00-LGMZ Datasheet

Current PartRFQ

PI3323-00-LGIZ

Vicor CorporationIn Stock: 1090PI3323-00-LGIZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI3323-00-LGMZ is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Output voltage: Fixed 3.3V
• Output current capacity: 22A minimum
• Input voltage range: 14V to 42V
• Switching frequency: 7MHz
• Synchronous rectifier: Present
• Topology: Buck (step-down)

Mechanical Equivalence Criteria:

• Package type: 110-BLGA Module
• Supplier device package: 110-LGA (14x10)
• Mounting type: Surface Mount

Compliance Criteria:

• RoHS3 compliance
• MSL rating: 3 (168 Hours)
• REACH status: Unaffected

The PI3323-00-LGIZ qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. Variations in operating temperature range and packaging format (tray versus other formats) do not affect functional substitution capability when thermal requirements are within the substitute's specified range.

Parameter Comparison

Engineering Selection Recommendations

The PI3323-00-LGIZ serves as a direct electrical and mechanical substitute for the PI3323-00-LGMZ. Both components are obsolete products from Vicor Corporation with identical electrical performance specifications and package configurations.

Selection Considerations:

The primary distinction between these parts is the operating temperature range. The PI3323-00-LGMZ supports -55°C to 120°C operation, while the PI3323-00-LGIZ operates from -40°C to 120°C. Applications requiring operation below -40°C must retain the PI3323-00-LGMZ. For applications with minimum operating temperatures at or above -40°C, the PI3323-00-LGIZ provides equivalent functionality.

Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring compatibility with standard manufacturing and storage protocols. The packaging format difference (tray for PI3323-00-LGIZ) does not affect electrical or mechanical performance when proper handling procedures are followed.

Frequently Asked Questions (FAQ)

Q: Can PI3323-00-LGIZ replace PI3323-00-LGMZ in all applications?

A: The PI3323-00-LGIZ provides electrical and mechanical equivalence for applications operating at temperatures of -40°C or higher. Applications requiring operation below -40°C must use the PI3323-00-LGMZ due to the narrower temperature range of the substitute.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 110-BLGA Module package with 110-LGA (14x10) supplier device package specifications. PCB footprints and mounting requirements are identical.

Q: What is the significance of the packaging format difference (tray versus other formats)?

A: Packaging format affects handling, storage, and shipping procedures but does not impact electrical performance or PCB-level compatibility. Standard MSL 3 handling protocols apply to both formats.

Q: Do both parts meet the same compliance standards?

A: Yes. Both PI3323-00-LGMZ and PI3323-00-LGIZ are ROHS3 compliant with identical MSL ratings of 3 (168 Hours) and REACH unaffected status.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these components are no longer in active production by Vicor Corporation. Existing inventory remains available, but long-term procurement should evaluate current-generation alternatives from the manufacturer's product portfolio.

Q: What are the critical electrical parameters that must match for substitution?

A: Output voltage (3.3V fixed), output current (22A), input voltage range (14V to 42V), switching frequency (7MHz), and synchronous rectifier presence must all match exactly. The PI3323-00-LGIZ meets all these requirements.