MP28275EL-LF-Z Equivalent & Substitute Parts

Part Overview

The MP28275EL-LF-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable step-down voltage regulation with 5A output current capability. This device operates across an input voltage range of 4.5V to 7V and provides adjustable output voltage from 0.8V to 6.3V, making it suitable for applications requiring efficient DC-DC conversion in compact form factors.

The MP28275EL-LF-Z carries a "Not For New Designs" product status, indicating that Monolithic Power Systems has discontinued active development and support for this device. Organizations requiring this functionality for new projects or seeking long-term supply assurance should evaluate qualified substitute components that offer equivalent or enhanced performance characteristics within compatible package specifications.

Substiute Parts

MP28275EL-LF-Z

Monolithic Power Systems Inc.In Stock: 18343MP28275EL-LF-Z Datasheet

Current PartRFQ

TPS63020DSJR

Texas InstrumentsIn Stock: 23355TPS63020DSJR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the MP28275EL-LF-Z must satisfy the following core electrical and mechanical criteria:

Primary Substitution Criteria:

• Output configuration: Positive adjustable voltage regulation
• Package compatibility: 14-pin VFDFN with exposed pad (surface mount)
• Synchronous rectification capability
• RoHS3 compliance and REACH unaffected status
• Operating temperature range support

Secondary Compatibility Factors:

• Input voltage range overlap with 4.5V to 7V specification
• Output voltage range capability spanning 0.8V to 6.3V
• Output current rating of 5A or greater
• Switching frequency in the 1MHz to 2.4MHz range

The TPS63020DSJR from Texas Instruments qualifies as a substitute based on matching package specifications, compliance certifications, and core functional requirements. However, architectural differences exist that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

MP28275EL-LF-Z Status Considerations: The MP28275EL-LF-Z is designated "Not For New Designs," indicating that Monolithic Power Systems has transitioned this product to end-of-life status. While existing inventory remains available (18,236 pcs), this classification signals reduced manufacturer support and potential supply discontinuation. New design implementations should prioritize components with "Active" product status to ensure long-term availability and technical support.

TPS63020DSJR as Active Alternative: The TPS63020DSJR from Texas Instruments carries "Active" product status, indicating ongoing manufacturer support, continued production, and availability assurance. This device maintains ROHS3 compliance and REACH unaffected status, matching the regulatory requirements of the MP28275EL-LF-Z. The TPS63020DSJR is currently in stock with 23,300 pcs available.

Compliance and Certification Alignment: Both components meet ROHS3 compliance requirements and carry REACH unaffected status. Both devices are classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring consistent regulatory treatment in supply chain operations.

Frequently Asked Questions (FAQ)

Q: Can the TPS63020DSJR directly replace the MP28275EL-LF-Z in existing designs?

A: Package compatibility exists—both devices use 14-VFDFN exposed pad surface mount packages. However, functional differences require circuit evaluation. The MP28275EL-LF-Z operates as a buck (step-down) regulator, while the TPS63020DSJR operates as a buck-boost (step-up/step-down) regulator. Input voltage range differs: MP28275EL-LF-Z requires 4.5V to 7V, while TPS63020DSJR accepts 1.8V to 5.5V. Output current rating differs: MP28275EL-LF-Z provides 5A versus TPS63020DSJR's 4.6A. Application-specific validation is required.

Q: What are the key electrical differences between these devices?

A: The MP28275EL-LF-Z is a dedicated buck converter with fixed topology, while the TPS63020DSJR provides buck-boost functionality, enabling voltage step-up or step-down operation from a single input source. The MP28275EL-LF-Z operates at 1.1MHz switching frequency; the TPS63020DSJR operates at 2.4MHz. Output current capability differs by 1.5A. Operating temperature range extends to -40°C on the TPS63020DSJR versus -20°C minimum on the MP28275EL-LF-Z.

Q: Are there packaging or mounting considerations for substitution?

A: Both devices use identical 14-VFDFN exposed pad packages with surface mount configuration. PCB layout, thermal management, and component placement remain compatible. Packaging specifications (RoHS3, MSL Level 1 Unlimited) are equivalent, eliminating packaging-related substitution barriers.

Q: Why is product status important for component selection?

A: Product status indicates manufacturer commitment level. "Not For New Designs" designation signals end-of-life trajectory, with potential supply discontinuation and reduced technical support. "Active" status ensures ongoing production, availability assurance, and manufacturer technical resources. For new designs requiring long-term supply stability, active components are preferred.

Q: What compliance certifications apply to both components?

A: Both the MP28275EL-LF-Z and TPS63020DSJR are ROHS3 compliant and REACH unaffected. Both carry ECCN EAR99 classification and HTSUS 8542.39.0001 tariff code, ensuring consistent regulatory and trade compliance across substitution scenarios.