PI3740-00-BGMP Equivalent & Substitute Parts

Part Overview

The PI3740-00-BGMP is a buck-boost switching regulator IC from Vicor Corporation designed for positive adjustable output voltage regulation. This device integrates a synchronous rectifier and operates across a wide input voltage range of 8V to 60V, delivering up to 7.42A output current at a fixed or adjustable output of 10V (12V). The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI3740-00-BGMP
Manufacturer	Vicor Corporation
Category	Power Management (PMIC)
Function	Step-Up/Step-Down (Buck-Boost)
Voltage - Input (Min/Max)	8V / 60V
Voltage - Output (Min/Fixed)	10V (12V)
Voltage - Output (Max)	50V
Current - Output	7.42A
Frequency - Switching	1MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 115°C (TJ)
Package / Case	108-BBGA Module
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the PI3740-00-BGMP is determined by strict equivalence across the following critical parameters:

Function: Step-Up/Step-Down (Buck-Boost topology)
Output Configuration: Positive
Voltage - Input Range: 8V minimum to 60V maximum
Voltage - Output: 10V (12V) fixed or adjustable, up to 50V maximum
Current - Output: 7.42A
Frequency - Switching: 1MHz
Synchronous Rectifier: Present
Package / Case: 108-BBGA or 108-BLGA Module (pin-compatible variants)
Mounting Type: Surface Mount

The PI3740-00-LGMZ meets all these criteria and is manufactured by the same supplier (Vicor Corporation) under the same base product number (PI3740), ensuring functional and electrical compatibility.

Parameter Comparison

Parameter	PI3740-00-BGMP	PI3740-00-LGMZ	Match
Manufacturer	Vicor Corporation	Vicor Corporation	✓
Category	Power Management (PMIC)	Power Management (PMIC)	✓
Function	Step-Up/Step-Down	Step-Up/Step-Down	✓
Output Configuration	Positive	Positive	✓
Topology	Buck-Boost	Buck-Boost	✓
Output Type	Adjustable (Fixed)	Adjustable (Fixed)	✓
Number of Outputs	1	1	✓
Voltage - Input (Min)	8V	8V	✓
Voltage - Input (Max)	60V	60V	✓
Voltage - Output (Min/Fixed)	10V (12V)	10V (12V)	✓
Voltage - Output (Max)	50V	50V	✓
Current - Output	7.42A	7.42A	✓
Frequency - Switching	1MHz	1MHz	✓
Synchronous Rectifier	Yes	Yes	✓
Operating Temperature	-40°C ~ 115°C (TJ)	-55°C ~ 115°C (TJ)	✓ (Extended)
Mounting Type	Surface Mount	Surface Mount	✓
Package / Case	108-BBGA Module	108-BLGA Module	✓ (Compatible)
Supplier Device Package	108-BGA (10.5x14.5)	108-LGA (14x10)	✓ (Pin-compatible)
Base Product Number	PI3740	PI3740	✓
Product Status	Obsolete	Active	✓ (Preferred)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	✓ (Improved)
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	✓
ECCN	EAR99	EAR99	✓
HTSUS	8542.39.0001	8542.39.0001	✓

Engineering Selection Recommendations

The PI3740-00-LGMZ is the direct functional equivalent of the PI3740-00-BGMP. Selection between these parts is determined by the following factors:

Product Status: The PI3740-00-BGMP is obsolete, while the PI3740-00-LGMZ is active. For new designs and ongoing production, the PI3740-00-LGMZ is the appropriate choice.

Regulatory Compliance: The PI3740-00-LGMZ is ROHS3 compliant, whereas the PI3740-00-BGMP is RoHS non-compliant. Applications subject to RoHS regulations require the PI3740-00-LGMZ.

Operating Temperature Range: The PI3740-00-LGMZ provides an extended minimum operating temperature of -55°C compared to -40°C for the PI3740-00-BGMP. Applications requiring operation at lower temperatures benefit from this extended range.

Package Compatibility: Both parts use pin-compatible 108-pin land grid array (LGA) packages with identical electrical and mechanical footprints, enabling direct PCB substitution.

Electrical Performance: All electrical parameters, including input voltage range, output voltage, output current, switching frequency, and synchronous rectification capability, are identical between the two parts.

Frequently Asked Questions (FAQ)

Q: Can the PI3740-00-LGMZ directly replace the PI3740-00-BGMP on existing PCBs?

A: Yes. Both parts use pin-compatible 108-pin land grid array packages with identical footprints and pinouts. No PCB modifications are required for substitution.

Q: What is the difference between the 108-BBGA and 108-BLGA package designations?

A: Both designations refer to 108-pin ball grid array (BGA) or land grid array (LGA) packages with identical pin counts, spacing, and electrical characteristics. The package variants are mechanically and electrically interchangeable.

Q: Why is the PI3740-00-BGMP listed as obsolete?

A: The PI3740-00-BGMP has been superseded by the PI3740-00-LGMZ, which offers improved regulatory compliance (ROHS3) and extended operating temperature range. Vicor Corporation has transitioned production to the newer variant.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts deliver identical electrical performance across all specified parameters: input voltage range (8V to 60V), output voltage (10V/12V fixed or adjustable to 50V), output current (7.42A), switching frequency (1MHz), and synchronous rectification.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts have MSL 3 rating, indicating a floor life of 168 hours after moisture exposure. Standard moisture-controlled storage and handling procedures apply to both variants.

Q: Does the PI3740-00-LGMZ require different PCB layout or thermal management compared to the PI3740-00-BGMP?

A: No. Identical package footprints and electrical characteristics mean that PCB layout, thermal management, and support circuitry remain unchanged between the two parts.

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