MP2040DQ-LF-Z Equivalent & Substitute Parts

Part Overview

The MP2040DQ-LF-Z is a linear voltage regulator IC from Monolithic Power Systems Inc., designed for positive adjustable output applications. This Surface Mount device delivers 3A output current in a compact 10-QFN (3x3) package with integrated enable, power good, over-current, over-temperature, and soft-start protection features. The part is marked as Not For New Designs, making identification of equivalent alternatives essential for ongoing production support and design continuity.

Substiute Parts

MP2040DQ-LF-Z

Monolithic Power Systems Inc.In Stock: 1013MP2040DQ-LF-Z Datasheet

Current PartRFQ

MP2040DQ-LF-P

Monolithic Power Systems Inc.In Stock: 972MP2040DQ-LF-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP2040DQ-LF-Z is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute, MP2040DQ-LF-P, maintains identical specifications across the following critical parameters:

• Output current capacity: 3A
• Input voltage range: Maximum 5.5V
• Output voltage adjustability: 0.9V to 3.3V
• Voltage dropout performance: 0.15V @ 3A (Typ)
• Package form factor: 10-VFDFN Exposed Pad
• Control and protection feature set: Enable, Power Good, Over Current, Over Temperature, Soft Start
• Operating temperature range: -40°C ~ 125°C
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

Both parts share the same base product number (MP2040) and are manufactured by Monolithic Power Systems Inc., confirming functional and pin-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both MP2040DQ-LF-Z and MP2040DQ-LF-P are marked as Not For New Designs. Selection between these parts should be based on current inventory availability and supply chain requirements rather than technical differentiation, as all electrical and mechanical parameters are identical.

The MP2040DQ-LF-Z maintains ROHS3 compliance and REACH Unaffected status, meeting regulatory requirements for industrial and commercial applications. The MP2040DQ-LF-P carries identical compliance certifications, ensuring no regulatory barriers to substitution.

For applications requiring this specific 3A adjustable linear regulator topology with the 10-QFN package form factor, either part number is functionally equivalent. Component selection should prioritize availability and lead time considerations.

Frequently Asked Questions (FAQ)

Q: Are MP2040DQ-LF-Z and MP2040DQ-LF-P pin-compatible?

A: Yes. Both parts use the 10-VFDFN Exposed Pad package with identical pinout and electrical characteristics. Direct PCB substitution is supported without layout modifications.

Q: What is the difference between the -Z and -P suffix designations?

A: The suffix designations indicate different packaging or tape reel configurations within the same product family. All electrical specifications, performance parameters, and functional features remain identical between the two part numbers.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that the specific packaging format (Tape & Reel) meets your assembly process requirements. Both parts are manufactured by Monolithic Power Systems Inc. and share the same base product number (MP2040), confirming full functional equivalence.

Q: Why is this part marked as Not For New Designs?

A: This designation indicates that Monolithic Power Systems Inc. has transitioned this product to end-of-life status. For new design initiatives, consultation with the manufacturer regarding recommended successor products is advised. Existing designs may continue to use available inventory of either equivalent part number.

Q: Are there any compliance or certification differences between these parts?

A: No. Both MP2040DQ-LF-Z and MP2040DQ-LF-P maintain identical ROHS3 compliance and REACH Unaffected status, with MSL rating of 1 (Unlimited) for moisture sensitivity.