MP28262EL-LF-P Equivalent & Substitute Parts

Part Overview

The MP28262EL-LF-P 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 marked as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing production support and design flexibility.

Substiute Parts

MP28262EL-LF-P

Monolithic Power Systems Inc.In Stock: 1049MP28262EL-LF-P Datasheet

Current PartRFQ

TPS63020DSJR

Texas InstrumentsIn Stock: 23355TPS63020DSJR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP28262EL-LF-P is determined by the following critical parameters:

• Topology & Function: Buck (step-down) switching regulator with positive adjustable output
• Output Voltage Range: Minimum 0.8V to maximum 18.9V adjustable output capability
• Input Voltage Range: 4.5V to 21V input acceptance
• Output Current: 2A minimum delivery capability
• Package Compatibility: 14-VFDFN Exposed Pad surface mount package
• Synchronous Rectification: Integrated synchronous rectifier for efficiency
• Compliance: ROHS3 compliant, MSL 1 rating

The TPS63020DSJR from Texas Instruments is listed as a manufacturer-recommended substitute. However, this device operates as a buck-boost topology with different input/output voltage specifications, requiring careful application-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

The MP28262EL-LF-P is classified as "Not For New Designs," indicating end-of-life status. The TPS63020DSJR is an active product from Texas Instruments with extended operating temperature range (-40°C to 85°C versus -20°C to 85°C) and higher output current capability (4.6A switch current versus 2A).

Both devices are ROHS3 compliant with MSL 1 ratings and share the same 14-VFDFN Exposed Pad package footprint, enabling direct PCB layout compatibility.

The primary distinction is topology: the MP28262EL-LF-P operates exclusively as a buck converter, while the TPS63020DSJR provides buck-boost functionality. The TPS63020DSJR's input voltage range (1.8V to 5.5V) is narrower than the MP28262EL-LF-P (4.5V to 21V), and its output voltage range (1.2V to 5.5V) is also more constrained than the original part (0.8V to 18.9V).

Selection between these devices depends on application-specific input and output voltage requirements. For applications requiring the full input voltage range of 4.5V to 21V or output voltages exceeding 5.5V, the MP28262EL-LF-P specifications cannot be matched by the TPS63020DSJR.

Frequently Asked Questions (FAQ)

Q: Can the TPS63020DSJR directly replace the MP28262EL-LF-P in all applications?

A: Direct replacement is not universal. While both devices share the same 14-VFDFN package and offer positive adjustable output with synchronous rectification, the TPS63020DSJR has narrower input (1.8V to 5.5V) and output (1.2V to 5.5V) voltage ranges compared to the MP28262EL-LF-P (4.5V to 21V input, 0.8V to 18.9V output). Replacement is valid only when application voltage requirements fall within the TPS63020DSJR specifications.

Q: What is the significance of the different topologies (buck versus buck-boost)?

A: The MP28262EL-LF-P operates as a buck (step-down) converter, reducing input voltage to a lower output voltage. The TPS63020DSJR operates as a buck-boost converter, capable of both stepping down and stepping up voltage. This functional difference affects circuit behavior and requires application-level validation.

Q: Are the packages physically compatible?

A: Yes. Both devices use the 14-VFDFN Exposed Pad surface mount package with identical footprint dimensions, allowing direct PCB layout compatibility without redesign.

Q: What are the key compliance differences?

A: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. The TPS63020DSJR offers an extended operating temperature range (-40°C to 85°C) compared to the MP28262EL-LF-P (-20°C to 85°C), providing broader environmental tolerance.

Q: Why is the MP28262EL-LF-P marked "Not For New Designs"?

A: This designation indicates the part is in end-of-life status. Monolithic Power Systems Inc. no longer recommends this device for new product development. Existing inventory remains available for legacy system support and maintenance.