PI3325-00-BGMZ Equivalent & Substitute Parts

Part Overview

The PI3325-00-BGMZ is a buck switching regulator IC manufactured by Vicor Corporation, designed to deliver a fixed 5V output at 20A from an input voltage range of 14V to 42V. This component operates as a positive step-down converter with a single output configuration and integrated synchronous rectification. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

PI3325-00-BGMZ

Vicor CorporationIn Stock: 823PI3325-00-BGMZ Datasheet

Current PartRFQ

PI3325-00-LGMZ

Vicor CorporationIn Stock: 1244PI3325-00-LGMZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The PI3325-00-LGMZ qualifies as a direct functional equivalent to the PI3325-00-BGMZ based on the following critical parameters:

Matching Electrical Specifications:

• Input voltage range: 14V to 42V
• Output voltage: 5V fixed
• Output current: 20A
• Switching frequency: 7MHz
• Synchronous rectification: Enabled
• Operating temperature range: -55°C to 120°C

Matching Mechanical and Compliance Specifications:

• Mounting type: Surface Mount
• Base product number: PI3325
• MSL rating: 3 (168 Hours)
• ECCN classification: EAR99
• HTSUS code: 8542.39.0001

Distinguishing Characteristic: The primary difference between these parts is the package format. The PI3325-00-BGMZ uses a 110-BBGA (Ball Grid Array) module with dimensions 14.5x10.5mm, while the PI3325-00-LGMZ uses a 110-BLGA (Land Grid Array) module with dimensions 14x10mm. Both packages are surface-mount configurations suitable for automated assembly.

Parameter Comparison

Engineering Selection Recommendations

The PI3325-00-LGMZ serves as a direct electrical and functional substitute for the PI3325-00-BGMZ. Both components deliver identical performance across all critical power management parameters: input voltage range, output voltage and current specifications, switching frequency, and thermal operating range.

Compliance Considerations:

Both parts maintain obsolete product status and carry equivalent export classifications (EAR99). The PI3325-00-LGMZ provides enhanced regulatory compliance through ROHS3 certification compared to the standard RoHS compliance of the PI3325-00-BGMZ. Both parts are REACH-classified, though with different regulatory statuses (REACH Affected versus REACH Unaffected).

Package Compatibility:

The substitution requires PCB layout modification due to package format differences. The PI3325-00-BGMZ employs a 110-BBGA (Ball Grid Array) configuration, while the PI3325-00-LGMZ uses a 110-BLGA (Land Grid Array) configuration. These packages have different footprints and interconnection methods. The BLGA format uses land-based connections rather than solder balls, necessitating redesign of the PCB landing pattern and assembly process adjustments.

Inventory and Availability:

The PI3325-00-LGMZ maintains higher inventory availability (1204 units) compared to the PI3325-00-BGMZ (772 units), supporting procurement continuity for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the PI3325-00-LGMZ replace the PI3325-00-BGMZ without PCB modifications?

A: No. While the electrical specifications are identical, the package formats differ fundamentally. The BGMZ uses a Ball Grid Array (BGA) with solder balls, while the LGMZ uses a Land Grid Array (LGA) with flat lands. PCB footprint redesign and revalidation are required.

Q: Are the electrical performance characteristics identical between these two parts?

A: Yes. Both parts deliver 5V at 20A from a 14V to 42V input, operate at 7MHz switching frequency, include synchronous rectification, and support the same -55°C to 120°C temperature range.

Q: What is the primary reason for substitution between these parts?

A: Both parts are classified as obsolete. The PI3325-00-LGMZ provides an alternative from the same manufacturer with identical electrical performance but different packaging, allowing design flexibility for new implementations or redesigns.

Q: Do both parts meet current regulatory requirements?

A: Both parts carry RoHS compliance certifications. The PI3325-00-LGMZ provides ROHS3 compliance, representing a more current regulatory standard. Both parts are classified under EAR99 export control and carry the same HTSUS commodity code.

Q: What are the moisture sensitivity considerations for these parts?

A: Both parts carry MSL (Moisture Sensitivity Level) rating 3 with a 168-hour floor life. Identical handling, storage, and reflow procedures apply to both components.

Q: How do the package dimensions affect board design?

A: The PI3325-00-BGMZ measures 14.5x10.5mm, while the PI3325-00-LGMZ measures 14x10mm. The LGMZ is slightly smaller. However, the primary design impact stems from the BGA-to-LGA transition, which affects via placement, trace routing, and assembly equipment compatibility rather than board space alone.

Q: Can these parts be used interchangeably in existing designs?

A: No. Existing designs using the PI3325-00-BGMZ require PCB layout modifications to accommodate the PI3325-00-LGMZ package format. Assembly process parameters and reflow profiles may also require adjustment based on the LGA interconnection method.