NCP337FCT2G Equivalent & Substitute Parts

Part Overview

The NCP337FCT2G is a Power Switch/Driver IC manufactured by onsemi, configured as a 1:1 P-Channel high-side switch with 3A output capacity in a 6-WLCSP package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The part operates across a load voltage range of 1.2V to 5.5V with controlled slew rate and load discharge features.

Substiute Parts

NCP337FCT2G

onsemiIn Stock: 2466NCP337FCT2G Datasheet

Current PartRFQ

NCP451AFCT2G

onsemiIn Stock: 71230NCP451AFCT2G Datasheet

MFR RecommendedRFQ

MIC94161YCS-TR

Microchip TechnologyIn Stock: 7765MIC94161YCS-TR Datasheet

SimilarRFQ

MIC94162YCS-TR

Microchip TechnologyIn Stock: 7384MIC94162YCS-TR Datasheet

SimilarRFQ

MIC94163YCS-TR

Microchip TechnologyIn Stock: 8004MIC94163YCS-TR Datasheet

SimilarRFQ

MIC94164YCS-TR

Microchip TechnologyIn Stock: 1932MIC94164YCS-TR Datasheet

SimilarRFQ

MIC94165YCS-TR

Microchip TechnologyIn Stock: 45192MIC94165YCS-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the NCP337FCT2G is determined by the following critical parameters:

Functional Equivalence Criteria:

• Output Type: P-Channel (required match)
• Output Configuration: High Side (required match)
• Ratio - Input:Output: 1:1 (required match)
• Current - Output (Max): 3A (required match)
• Switch Type: General Purpose (required match)
• Number of Outputs: 1 (required match)
• Interface: On/Off (required match)
• Input Type: Non-Inverting (required match)
• Mounting Type: Surface Mount (required match)
• Package / Case: 6-WFBGA or 6-UFBGA, WLCSP (compatible packages)

Acceptable Parameter Variations:

• Voltage - Load: Minimum threshold may be higher (1.7V acceptable vs. 1.2V original)
• Rds On (Typ): Lower values are acceptable (14.5mOhm acceptable vs. 20Ohm original)
• Operating Temperature: Range may be narrower (acceptable if application requirements are met)
• Features: Additional features such as Reverse Current protection are acceptable; Load Discharge may vary
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® are both acceptable

Substitute Parts Identified:

• MIC94161YCS-TR (Microchip Technology)
• MIC94162YCS-TR (Microchip Technology)
• MIC94163YCS-TR (Microchip Technology)
• MIC94164YCS-TR (Microchip Technology)
• MIC94165YCS-TR (Microchip Technology)

All substitute parts are manufactured by Microchip Technology and maintain functional equivalence through matching output type, configuration, current rating, and package family.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts (MIC94161YCS-TR, MIC94162YCS-TR, MIC94163YCS-TR, MIC94164YCS-TR, MIC94165YCS-TR) are manufactured by Microchip Technology and maintain active product status, ensuring long-term availability and supply chain stability compared to the obsolete NCP337FCT2G.

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) ratings, matching the original part's environmental and regulatory certifications. The substitute parts provide improved electrical performance with lower typical on-resistance (14.5mOhm vs. 20Ohm), resulting in reduced power dissipation and improved thermal characteristics.

The minimum load voltage specification for substitute parts is 1.7V compared to 1.2V for the original part. Applications operating below 1.7V require verification of compatibility. All substitute parts support the same 3A output current, 1:1 input-output ratio, and high-side P-Channel configuration.

Packaging differences exist between the original 6-UFBGA and substitute 6-WFBGA variants, though both are WLCSP family packages. Physical dimensions vary slightly across the MIC94161 through MIC94165 series (ranging from 1.0x1.5mm to 1.5x1.1mm), requiring PCB layout verification for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can MIC94161YCS-TR, MIC94162YCS-TR, MIC94163YCS-TR, MIC94164YCS-TR, or MIC94165YCS-TR be used as direct replacements for NCP337FCT2G?

A: Yes, all five Microchip Technology parts are functionally equivalent substitutes. They maintain the same output type (P-Channel), configuration (high-side), current rating (3A), and 1:1 ratio. All are active products with ROHS3 compliance and MSL 1 ratings. Verify that your application's minimum load voltage requirement does not fall below 1.7V, as the original part supports operation down to 1.2V.

Q: What are the key differences between the substitute parts?

A: The MIC94161YCS-TR, MIC94162YCS-TR, MIC94163YCS-TR, MIC94164YCS-TR, and MIC94165YCS-TR differ primarily in physical package dimensions and feature sets. MIC94164YCS-TR and MIC94162YCS-TR include Load Discharge features matching the original part. All maintain identical electrical specifications (3A output, 14.5mOhm Rds On, -40°C to 125°C operating range). Packaging dimensions range from 1.0x1.5mm to 1.5x1.1mm, requiring PCB layout verification.

Q: Are there packaging compatibility concerns?

A: The original NCP337FCT2G uses 6-UFBGA packaging, while all substitute parts use 6-WFBGA packaging. Both are WLCSP family packages with surface mount configuration. Physical dimensions vary across the substitute series. PCB footprint and layout must be verified against the specific substitute part selected, as ball grid array dimensions differ between variants.

Q: What is the impact of the lower minimum load voltage specification on substitute parts?

A: Substitute parts specify a minimum load voltage of 1.7V compared to 1.2V for the original NCP337FCT2G. Applications operating at load voltages between 1.2V and 1.7V are not compatible with the substitute parts. Applications operating at 1.7V or above are unaffected by this specification difference.

Q: Do the substitute parts provide any performance improvements?

A: Yes. All substitute parts feature lower typical on-resistance (14.5mOhm vs. 20Ohm), resulting in reduced power dissipation and improved thermal performance. Substitute parts also include Reverse Current fault protection, which is not present in the original part. This provides enhanced circuit protection in applications where reverse current conditions may occur.

Q: Are all substitute parts available in the same packaging format?

A: No. MIC94161YCS-TR, MIC94162YCS-TR, and MIC94163YCS-TR are supplied in Tape & Reel (TR) format. MIC94164YCS-TR and MIC94165YCS-TR are supplied in Cut Tape (CT) & Digi-Reel® format. Select the packaging format appropriate for your procurement and assembly requirements.