MP4008GS-Z LED Driver Controller Equivalent & Substitute Parts

Part Overview

The MP4008GS-Z is an active LED driver controller IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a DC-DC controller supporting Boost and SEPIC topologies with PWM dimming capability, designed for general-purpose LED driver applications. The part operates across a 9V to 28V supply voltage range with a 180kHz switching frequency and is housed in an 8-SOIC surface mount package. As an active product with ROHS3 compliance and established inventory availability, equivalent and substitute parts may be required for design flexibility, supply chain optimization, or topology-specific application requirements.

Substiute Parts

MP4008GS-Z

Monolithic Power Systems Inc.In Stock: 39960MP4008GS-Z Datasheet

Current PartRFQ

HVLED002TR

STMicroelectronicsIn Stock: 2870HVLED002TR Datasheet

MFR RecommendedRFQ

IRS25411STRPBF

Infineon TechnologiesIn Stock: 30236IRS25411STRPBF Datasheet

MFR RecommendedRFQ

LT3755IMSE-1#PBF

Analog Devices Inc.In Stock: 20179LT3755IMSE-1#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP4008GS-Z is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 8-SOIC surface mount package to ensure PCB layout compatibility without redesign.

Topology Support: The MP4008GS-Z supports Boost and SEPIC topologies. Substitute parts must support at least one of these topologies, or provide equivalent multi-topology capability.

Supply Voltage Range: The operating supply voltage range (9V to 28V) establishes the minimum acceptable input voltage window. Substitute parts must accommodate this range or provide overlapping coverage.

Dimming Capability: PWM dimming is a core functional requirement. Substitute parts must support PWM dimming or equivalent dimming methodology.

Single Output Configuration: The part is configured for single output operation. Substitute parts must maintain single output architecture.

Switching Frequency: The 180kHz switching frequency is a reference point. Substitute parts may operate at different frequencies provided they meet application timing requirements.

Compliance & Status: All substitute parts must maintain active product status and ROHS3 compliance to ensure long-term availability and regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

HVLED002TR (STMicroelectronics): This part maintains 8-SOIC package compatibility and operates within an overlapping supply voltage range (7V to 25V). The upper supply limit of 25V is within the MP4008GS-Z maximum of 28V. Operating temperature extends to 150°C, providing enhanced thermal margin. Topology information is not specified in available data; application verification is necessary to confirm Boost or SEPIC capability. Dimming methodology is not specified. This part is active and ROHS3 compliant.

IRS25411STRPBF (Infineon Technologies): This part maintains 8-SOIC package compatibility and supports PWM dimming. However, the topology is limited to Step-Down (Buck) operation, which differs from the Boost and SEPIC topologies of the MP4008GS-Z. The maximum supply voltage is 16.6V, which is below the MP4008GS-Z maximum of 28V. Operating temperature range is -25°C to 125°C, which is narrower than the main part. This part is active and ROHS3 compliant but is suitable only for Buck topology applications.

LT3755IMSE-1#PBF (Analog Devices Inc.): This part supports multiple topologies including Boost and SEPIC, matching the MP4008GS-Z topology requirements. Supply voltage range is 4.5V to 40V, providing extended coverage beyond the main part. Switching frequency is programmable from 100kHz to 1MHz, offering flexibility. PWM dimming is supported. However, the package is 16-TFSOP with exposed pad, which differs from the 8-SOIC package of the MP4008GS-Z and requires PCB layout redesign. Operating temperature range is -40°C to 125°C, matching the main part. This part is active and ROHS3 compliant but requires package-level design changes.

Frequently Asked Questions (FAQ)

Q: Can HVLED002TR be used as a direct replacement for MP4008GS-Z?

A: HVLED002TR shares the 8-SOIC package footprint, enabling direct PCB placement without layout modification. However, topology and dimming specifications are not provided in available data. Electrical compatibility must be verified against application requirements before implementation.

Q: Why is IRS25411STRPBF listed as a substitute if it only supports Buck topology?

A: IRS25411STRPBF is included because it is an active LED driver controller IC in the same package category with PWM dimming support. It is suitable for applications requiring Step-Down (Buck) topology. For Boost or SEPIC applications, this part is not compatible with the MP4008GS-Z functional requirements.

Q: What are the package implications of using LT3755IMSE-1#PBF?

A: LT3755IMSE-1#PBF uses a 16-TFSOP package with exposed pad, whereas MP4008GS-Z uses 8-SOIC. This package difference requires PCB redesign, including new footprint layout, trace routing, and thermal management considerations. Direct socket substitution is not possible.

Q: Does supply voltage range overlap determine substitution suitability?

A: Supply voltage range is a critical parameter. A substitute part must operate within or encompass the application's required voltage window. Partial overlap may be acceptable if the application operates within the overlapping range, but full range compatibility is preferred for design flexibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and active product status, ensuring regulatory alignment and long-term supply availability consistent with the main part.

Q: What is the significance of switching frequency differences?

A: Switching frequency affects component selection, PCB layout, and electromagnetic interference (EMI) characteristics. Substitute parts with different frequencies may require external component adjustments. The MP4008GS-Z operates at 180kHz; substitute parts range from 250kHz to programmable 100kHz-1MHz. Application-specific frequency requirements determine suitability.

Q: Can dimming capability be omitted in a substitute part?

A: Dimming capability is a core functional requirement of the MP4008GS-Z. Substitute parts must support PWM dimming or equivalent dimming methodology. Parts without specified dimming capability require functional verification before use.