MP6920DN-LF-P Equivalent & Substitute Parts

Part Overview

The MP6920DN-LF-P is a Power Supply Controller Active/Synchronous Rectification Controller manufactured by Monolithic Power Systems Inc. in an 8-SOIC package with exposed pad. This component functions as a synchronous rectification controller for flyback power supply topologies.

The MP6920DN-LF-P is classified as obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this controller.

Substiute Parts

MP6920DN-LF-P

Monolithic Power Systems Inc.In Stock: 1072MP6920DN-LF-P Datasheet

Current PartRFQ

PS10NG-G

Microchip TechnologyIn Stock: 756PS10NG-G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part identification for the MP6920DN-LF-P is based on the following criteria:

Primary Substitution Parameters:

• Functional category: Power Management (PMIC)
• Mounting type: Surface Mount
• Package classification: SOIC family
• RoHS compliance status: ROHS3 Compliant
• Operating temperature range compatibility
• Supply voltage operating range

The PS10NG-G from Microchip Technology is identified as a substitute part. Both components are surface-mount SOIC-packaged power management controllers with ROHS3 compliance. The PS10NG-G functions as a Power Supply Controller and Power Supply Sequencer, addressing similar power supply control applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The MP6920DN-LF-P is obsolete, while the PS10NG-G maintains active product status with Microchip Technology. Active status ensures continued availability, technical support, and manufacturing consistency.

Compliance and Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for electronic component deployment in regulated markets.

Package and Thermal Characteristics: The PS10NG-G operates within a reduced temperature range (-40°C ~ 85°C) compared to the MP6920DN-LF-P (-40°C ~ 125°C). Applications requiring operation above 85°C require design verification. The PS10NG-G package is 14-SOIC versus the 8-SOIC of the main part, requiring PCB layout modification.

Moisture Sensitivity: The PS10NG-G exhibits superior moisture sensitivity characteristics (MSL 1, Unlimited) compared to the MP6920DN-LF-P (MSL 2, 1 Year), reducing handling and storage constraints.

Frequently Asked Questions (FAQ)

Q: Can the PS10NG-G directly replace the MP6920DN-LF-P without PCB modification?

A: No. The PS10NG-G is packaged in 14-SOIC while the MP6920DN-LF-P uses 8-SOIC. PCB layout modification is required to accommodate the different pin count and package footprint.

Q: What is the impact of the operating temperature range difference?

A: The MP6920DN-LF-P operates to 125°C while the PS10NG-G operates to 85°C maximum. Applications requiring operation above 85°C cannot use the PS10NG-G as a direct substitute without thermal design changes.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the MP6920DN-LF-P and PS10NG-G are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component use.

Q: What is the significance of the supply current difference?

A: The MP6920DN-LF-P draws 8 mA while the PS10NG-G draws 400 µA. The PS10NG-G exhibits significantly lower quiescent current consumption, potentially reducing overall system power dissipation.

Q: How do the moisture sensitivity levels affect component handling?

A: The MP6920DN-LF-P (MSL 2) requires controlled storage conditions with a 1-year shelf life limit. The PS10NG-G (MSL 1) has unlimited shelf life, reducing storage and handling complexity.

Q: What functional differences exist between these controllers?

A: The MP6920DN-LF-P is specified as an Active/Synchronous Rectification Controller for flyback topologies. The PS10NG-G functions as a Power Supply Controller and Power Supply Sequencer. Application-specific functional verification is required to confirm compatibility with existing circuit designs.