MP38900DL-Z Equivalent & Substitute Parts

Part Overview

The MP38900DL-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for step-down voltage conversion applications. This device delivers 10A output current with adjustable positive output voltage ranging from 0.8V to 13V, operating from a 4.5V to 16V input supply. The part features integrated synchronous rectification and is housed in a 20-VFQFN exposed pad surface mount package.

The MP38900DL-Z is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications currently utilizing this regulator.

Substiute Parts

MP38900DL-Z

Monolithic Power Systems Inc.In Stock: 947MP38900DL-Z Datasheet

Current PartRFQ

NB503GQ-Z

Monolithic Power Systems Inc.In Stock: 52691NB503GQ-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP38900DL-Z requires evaluation based on the following critical parameters:

Electrical Compatibility Criteria:

• Manufacturer: Monolithic Power Systems Inc. (same manufacturer ensures design continuity and application support)
• Category: Power Management (PMIC)
• Function: Step-Down (Buck) topology
• Output Configuration: Positive adjustable output
• Input voltage range: 4.5V to 16V minimum compatibility
• Output voltage range: 0.8V to 13V minimum compatibility
• Output current: 10A minimum capability
• Synchronous rectification: Integrated feature

Mechanical & Environmental Criteria:

• Mounting Type: Surface Mount
• Package: 20-QFN form factor or compatible alternative
• Operating Temperature: -40°C to 125°C minimum range
• RoHS3 Compliance: Required for regulatory alignment
• Moisture Sensitivity Level: MSL 1 or equivalent

Regulatory & Compliance Criteria:

• REACH Status: REACH Unaffected or compliant
• ECCN Classification: EAR99
• HTSUS Code: 8542.39.0001

The NB503GQ-Z is identified as a substitute component within the Monolithic Power Systems Inc. product portfolio, sharing the same manufacturer, PMIC category, and regulatory compliance framework.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The MP38900DL-Z is classified as obsolete, while the NB503GQ-Z maintains active product status. Active status indicates ongoing manufacturer support, availability through authorized distribution channels, and continued compliance with current regulatory requirements.

Regulatory & Compliance Alignment: Both components maintain ROHS3 compliance, MSL 1 rating, REACH unaffected status, and EAR99 ECCN classification. This alignment ensures that substitution does not introduce regulatory or compliance complications for applications currently utilizing the MP38900DL-Z.

Manufacturer Continuity: Both components are manufactured by Monolithic Power Systems Inc., ensuring consistency in design philosophy, application support documentation, and technical resources. This manufacturer continuity reduces integration risk and supports long-term supply chain stability.

Selection Basis: Component selection should prioritize the NB503GQ-Z due to its active product status and full regulatory compliance alignment with the obsolete MP38900DL-Z. The active status ensures sustained availability and manufacturer support for new designs and ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the NB503GQ-Z directly replace the MP38900DL-Z in existing designs?

A: The NB503GQ-Z shares the same manufacturer, PMIC category, regulatory compliance framework, and environmental ratings as the MP38900DL-Z. However, direct substitution requires verification of electrical specifications including input voltage range, output voltage range, output current capability, and package pinout compatibility. Detailed datasheet comparison is necessary to confirm functional equivalence for specific applications.

Q: What is the significance of the obsolete product status for the MP38900DL-Z?

A: Obsolete status indicates that the MP38900DL-Z is no longer in active production and will not receive ongoing manufacturer support or design updates. This status necessitates identification of active alternative components to ensure long-term supply chain continuity and access to technical resources.

Q: Are both components housed in the same package?

A: The MP38900DL-Z is specified in a 20-VFQFN exposed pad package (20-QFN 3x4 form factor). The NB503GQ-Z is specified in a QFN package. Package compatibility must be confirmed through detailed dimensional and pinout analysis before substitution.

Q: Do both components meet current regulatory requirements?

A: Both the MP38900DL-Z and NB503GQ-Z maintain ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification. This regulatory alignment ensures that substitution does not introduce compliance complications for applications subject to these standards.

Q: What electrical parameters must be verified before substitution?

A: Critical electrical parameters requiring verification include input voltage range (minimum 4.5V to 16V), output voltage range (minimum 0.8V to 13V), output current capability (minimum 10A), and synchronous rectification feature. These parameters determine functional compatibility with existing circuit designs.

Q: Is the NB503GQ-Z available in current inventory?

A: The NB503GQ-Z is listed as active product status with 52,618 pieces in new original stock. The MP38900DL-Z, despite obsolete status, shows 900 pieces in current inventory. Availability should be confirmed with authorized distributors for specific procurement timelines.