MP4050AGJ-Z Equivalent & Substitute Parts

Part Overview

The MP4050AGJ-Z is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc. in TSOT-23-5 surface mount packaging. This device functions as a step-down (buck) topology converter with internal switching capability, designed for general purpose and lighting applications. The part is currently active in production with 720 units in stock inventory. Alternative equivalent and substitute parts are necessary to address supply chain flexibility, packaging preferences, and application-specific requirements while maintaining functional compatibility.

Substiute Parts

MP4050AGJ-Z

Monolithic Power Systems Inc.In Stock: 745MP4050AGJ-Z Datasheet

Current PartRFQ

MP4050AGJ-P

Monolithic Power Systems Inc.In Stock: 787MP4050AGJ-P Datasheet

Parametric EquivalentRFQ

UCC25710DW

Texas InstrumentsIn Stock: 952UCC25710DW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the MP4050AGJ-Z is based on the following critical parameters that define functional equivalence:

Primary Equivalence Criteria:

• Type: AC DC Offline Switcher
• Topology: Step-Down (Buck)
• Number of Outputs: 1
• Operating Temperature Range: -40°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Product Status: Active

Packaging Considerations:

• TSOT-23-5 package represents the primary form factor for direct pin-compatible substitution
• Alternative packages (such as 20-SOIC) require board-level redesign and are classified as functional alternatives rather than direct substitutes

Supply Voltage Range:

• MP4050AGJ-Z operates within 4.1V to 5V supply range
• Substitute parts with different supply voltage specifications require application circuit redesign

The substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications with different packaging codes) and manufacturer-recommended alternatives (functionally equivalent but with different package types and supply voltage requirements).

Parameter Comparison

Engineering Selection Recommendations

MP4050AGJ-P (Parametric Equivalent): MP4050AGJ-P is a direct parametric equivalent to MP4050AGJ-Z. Both parts share identical electrical specifications, operating temperature range, automotive grade qualification, and TSOT-23-5 packaging. The distinction between these part numbers reflects packaging code variations from Monolithic Power Systems Inc. Selection between MP4050AGJ-Z and MP4050AGJ-P is based on supply chain availability and inventory status. Both parts are active products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

UCC25710DW (Manufacturer-Recommended Alternative): UCC25710DW is a Texas Instruments AC DC offline switcher LED driver recommended as a functional alternative. This part differs in three critical aspects: (1) supply voltage range of 11V to 18V versus 4.1V to 5V, (2) 20-SOIC package versus TSOT-23-5, and (3) absence of internal switching capability. Selection of UCC25710DW requires application circuit redesign to accommodate the higher supply voltage specification and different package footprint. This part is suitable for applications where supply voltage requirements align with the 11V to 18V range and board space permits 20-SOIC package integration. UCC25710DW maintains active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can MP4050AGJ-P be used as a direct replacement for MP4050AGJ-Z?

A: Yes. MP4050AGJ-P is a parametric equivalent with identical electrical specifications, operating temperature range (-40°C to 125°C), automotive grade, and TSOT-23-5 packaging. No circuit redesign is required for substitution.

Q: What are the key differences between MP4050AGJ-Z and UCC25710DW?

A: The primary differences are: (1) supply voltage range (MP4050AGJ-Z: 4.1V–5V; UCC25710DW: 11V–18V), (2) package type (MP4050AGJ-Z: TSOT-23-5; UCC25710DW: 20-SOIC), and (3) internal switching capability (MP4050AGJ-Z: integrated; UCC25710DW: external). These differences require application circuit redesign for UCC25710DW substitution.

Q: Is UCC25710DW suitable for 5V supply applications?

A: No. UCC25710DW operates within 11V to 18V supply voltage range and is not specified for 5V operation. Direct substitution in 5V applications requires circuit redesign and is not recommended based on the provided specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MP4050AGJ-Z, MP4050AGJ-P, and UCC25710DW are all ROHS3 compliant and maintain unlimited moisture sensitivity level (MSL 1).

Q: What is the difference between TSOT-23-5 and 20-SOIC packaging?

A: TSOT-23-5 is a 5-pin thin small-outline package with 0.65mm pitch, while 20-SOIC is a 20-pin small-outline package with 1.27mm pitch and larger footprint. These packages are not pin-compatible and require different PCB layouts.

Q: Can MP4050AGJ-Z be used in automotive applications?

A: Yes. MP4050AGJ-Z carries automotive grade qualification and operates within -40°C to 125°C temperature range, meeting automotive application requirements.