MP3376GR-XXXX-P Equivalent & Substitute Parts

Part Overview

The MP3376GR-XXXX-P is an LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as an 8-output DC-DC regulator with step-up (boost) topology, designed for multi-step dimming applications in backlight systems. The part operates with a supply voltage range of 3V to 30V and delivers 36V output at 50mA per channel. The MP3376GR-XXXX-P maintains Active product status and is ROHS3 compliant with automotive-grade qualification. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate different electrical characteristics.

Substiute Parts

MP3376GR-XXXX-P

Monolithic Power Systems Inc.In Stock: 1138MP3376GR-XXXX-P Datasheet

Current PartRFQ

MAX1576ETG+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2929MAX1576ETG+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP3376GR-XXXX-P is determined by compatibility across the following critical parameters: device category (Power Management PMIC), primary function (LED Driver IC with DC-DC regulation), number of outputs (8), multi-step dimming capability, surface mount packaging format, and compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification).

The identified substitute part, MAX1576ETG+T, shares the core functional classification as an LED Driver IC with 8 outputs and multi-step dimming. However, this substitute operates under different electrical constraints: it employs switched capacitor (charge pump) topology rather than step-up boost topology, operates within a reduced supply voltage range of 2.7V to 5.5V, and delivers 5V output instead of 36V. The output current per channel is specified as 30mA standard operation with 100mA flash capability, compared to the 50mA continuous rating of the primary part.

Substitution is valid only when the application requirements align with the substitute's electrical specifications and when the different topology and voltage characteristics are acceptable for the target circuit design.

Parameter Comparison

Engineering Selection Recommendations

Both the MP3376GR-XXXX-P and MAX1576ETG+T maintain Active product status and satisfy ROHS3 compliance requirements. Both parts are classified under ECCN EAR99 and are REACH Unaffected, meeting standard regulatory and environmental compliance criteria for industrial and automotive applications.

Selection between these parts must be based on circuit-level voltage and current requirements. The MP3376GR-XXXX-P is suitable for applications requiring high output voltage (36V) with moderate current delivery (50mA per channel) across an extended input supply range (3V to 30V). The MAX1576ETG+T is appropriate for low-voltage applications (2.7V to 5.5V input, 5V output) where flash capability or higher peak current (100mA) is beneficial. The different topologies—boost versus charge pump—result in distinct efficiency profiles and component requirements that must align with the target application's power budget and circuit architecture.

Frequently Asked Questions (FAQ)

Q: Can the MAX1576ETG+T directly replace the MP3376GR-XXXX-P in an existing design?

A: Direct replacement is not recommended without circuit redesign. The substitute part operates at fundamentally different voltage levels (2.7V–5.5V input, 5V output versus 3V–30V input, 36V output) and uses different topology (charge pump versus boost). Applications requiring 36V output cannot use the MAX1576ETG+T without additional voltage conversion stages.

Q: What are the key differences in topology between these parts?

A: The MP3376GR-XXXX-P uses step-up (boost) topology, which employs an inductor to step up voltage from the input supply. The MAX1576ETG+T uses switched capacitor (charge pump) topology, which uses capacitors and switches to generate the output voltage. These topologies have different efficiency characteristics, component counts, and electromagnetic interference profiles.

Q: Are the package formats compatible?

A: Both parts use 24-pin QFN packages with exposed pads in surface mount format. The MP3376GR-XXXX-P uses 24-VFQFN while the MAX1576ETG+T uses 24-WFQFN. Physical footprints may differ slightly; PCB layout verification is required before substitution.

Q: What is the significance of the multi-step dimming feature?

A: Multi-step dimming allows the LED driver to adjust output brightness through discrete voltage or current steps rather than continuous analog control. Both parts support this feature, enabling compatible dimming control interfaces in backlight applications.

Q: Are there inventory or lead time considerations?

A: The MP3376GR-XXXX-P has 1083 pieces in stock. The MAX1576ETG+T has 2825 pieces available. Availability should be verified with the supplier for current project timelines.

Q: Do both parts meet automotive-grade requirements?

A: The MP3376GR-XXXX-P is specified with automotive grade qualification. The MAX1576ETG+T specifications provided do not explicitly state automotive grade. Grade requirements must be confirmed with the manufacturer before use in automotive applications.