MP28262EL-LF-Z Equivalent & Substitute Parts

Part Overview

The MP28262EL-LF-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for step-down voltage conversion with positive adjustable output. This device delivers 2A output current with an input voltage range of 4.5V to 21V and adjustable output from 0.8V to 18.9V. The part is classified as Not For New Designs, indicating it has been superseded in the product lifecycle. Finding equivalent or substitute parts is necessary for applications requiring continued supply, design flexibility, or performance optimization beyond the original part's specifications.

Substiute Parts

MP28262EL-LF-Z

Monolithic Power Systems Inc.In Stock: 60345MP28262EL-LF-Z Datasheet

Current PartRFQ

TPS63020QDSJRQ1

Texas InstrumentsIn Stock: 17146TPS63020QDSJRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP28262EL-LF-Z is evaluated based on the following critical parameters:

Topology & Function: The MP28262EL-LF-Z operates as a buck (step-down) converter. Substitute parts must support step-down conversion or buck-boost conversion to maintain voltage reduction capability.

Output Configuration: Positive adjustable output is required. Substitute parts must provide adjustable positive voltage output.

Package Compatibility: The 14-VFDFN Exposed Pad package defines the physical footprint. Substitute parts must use the same or compatible package to ensure PCB layout compatibility.

Electrical Performance: Input voltage range (4.5V to 21V), output voltage range (0.8V to 18.9V), and output current (2A) define the operational envelope. Substitute parts must meet or exceed these specifications.

Compliance & Status: RoHS3 compliance and active product status are preferred for new applications and long-term availability.

The TPS63020QDSJRQ1 qualifies as a substitute based on these criteria, with enhanced specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The TPS63020QDSJRQ1 is suitable as a substitute for the MP28262EL-LF-Z in applications where the input voltage range does not exceed 5.5V and output voltage does not exceed 5.5V. Both devices share the same 14-VFDFN Exposed Pad package, enabling direct PCB layout compatibility.

Product Status Advantage: The TPS63020QDSJRQ1 carries Active product status, ensuring long-term availability and continued manufacturer support. The MP28262EL-LF-Z is classified as Not For New Designs, making the TPS63020QDSJRQ1 the preferred choice for new designs and applications requiring extended supply assurance.

Compliance & Certification: Both parts are ROHS3 compliant. The TPS63020QDSJRQ1 includes AEC-Q100 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Performance Considerations: The TPS63020QDSJRQ1 offers higher output current (4.6A vs. 2A) and extended operating temperature range (-40°C to 125°C vs. -20°C to 85°C). The buck-boost topology of the TPS63020QDSJRQ1 provides voltage step-up capability in addition to step-down conversion, offering greater circuit design flexibility.

Input Voltage Limitation: Applications requiring input voltages above 5.5V cannot use the TPS63020QDSJRQ1 as a direct substitute. The MP28262EL-LF-Z supports input voltages up to 21V, a capability not matched by the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the TPS63020QDSJRQ1 replace the MP28262EL-LF-Z in all applications?

A: No. The TPS63020QDSJRQ1 has a maximum input voltage of 5.5V, while the MP28262EL-LF-Z supports up to 21V. Substitution is valid only for applications where the input voltage does not exceed 5.5V and the output voltage does not exceed 5.5V.

Q: Are the packages physically compatible?

A: Yes. Both the MP28262EL-LF-Z and TPS63020QDSJRQ1 use the 14-VFDFN Exposed Pad package, enabling direct PCB footprint compatibility without layout redesign.

Q: What is the difference between buck and buck-boost topology?

A: The MP28262EL-LF-Z uses buck topology, which only steps down voltage. The TPS63020QDSJRQ1 uses buck-boost topology, which can both step down and step up voltage. For applications requiring only step-down conversion within the input voltage limits of the TPS63020QDSJRQ1, both topologies are functionally equivalent.

Q: Why is the TPS63020QDSJRQ1 recommended over the MP28262EL-LF-Z?

A: The TPS63020QDSJRQ1 has Active product status, ensuring continued availability and manufacturer support. The MP28262EL-LF-Z is Not For New Designs, indicating end-of-life status. For new designs, the TPS63020QDSJRQ1 is the preferred choice.

Q: What is the impact of the higher switching frequency in the TPS63020QDSJRQ1?

A: The TPS63020QDSJRQ1 operates at 2.4MHz compared to 1.1MHz for the MP28262EL-LF-Z. Higher switching frequency typically allows for smaller external filter components but may increase electromagnetic interference (EMI). Circuit design and PCB layout must account for this difference.

Q: Are there moisture sensitivity differences between these parts?

A: Yes. The MP28262EL-LF-Z has MSL 1 (Unlimited), while the TPS63020QDSJRQ1 has MSL 2 (1 Year). The TPS63020QDSJRQ1 requires more careful handling and storage to prevent moisture absorption, with a one-year shelf life limit from the date of manufacture.

Q: Can the TPS63020QDSJRQ1 deliver the same 2A output current as the MP28262EL-LF-Z?

A: Yes. The TPS63020QDSJRQ1 is rated for 4.6A output current, exceeding the 2A requirement of the MP28262EL-LF-Z. Applications requiring 2A output are well within the capability of the substitute part.