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MP24893DQ-LF-Z LED Driver IC Equivalent & Substitute Parts
Part Overview
The MP24893DQ-LF-Z is a LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 1-output DC-DC regulator with step-down (buck) topology, delivering 1A output current with analog and PWM dimming capabilities. The component is rated for automotive applications with an operating temperature range of -40°C to 125°C (TJ).
The MP24893DQ-LF-Z carries a product status of "Not For New Designs," indicating it is no longer recommended for new development. This status necessitates identification of equivalent and substitute parts that maintain functional compatibility while offering active product support or improved availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | MP24893DQ-LF-Z |
| Manufacturer | Monolithic Power Systems Inc. |
| Category | Power Management (PMIC) |
| Type | DC DC Regulator |
| Topology | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Supply (Min) | 6V |
| Voltage - Supply (Max) | 36V |
| Current - Output / Channel | 1A |
| Dimming | Analog, PWM |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | Automotive |
| Package / Case | 6-VDFN Exposed Pad |
| Supplier Device Package | 6-QFN (3x3) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MP24893DQ-LF-Z is determined by the following critical parameters:
Primary Substitution Criteria:
- Topology: Step-Down (Buck) configuration
- Number of Outputs: 1 output channel
- Voltage Supply Range: Minimum 6V, Maximum 36V (or compatible overlap)
- Current Output Capability: 1A or greater
- Dimming Support: Analog and/or PWM dimming capability
- Operating Temperature Range: -40°C to 125°C or broader
- Package Compatibility: Surface mount with exposed pad design
Parametric Equivalent Classification: The MP24893DQ-LF-P (Monolithic Power Systems Inc.) is a parametric equivalent sharing identical electrical specifications and the same base product number (MP24893). This part differs only in packaging designation (P vs. LF-Z suffix) and represents direct functional interchangeability.
Manufacturer Recommended Alternatives: The following parts are classified as manufacturer-recommended substitutes based on matching core functional parameters while offering different topologies, current ratings, or supply voltage ranges:
- BU90030G-TR (Rohm Semiconductor): Switched capacitor topology, lower current (80mA), narrower supply range (2V-4V), active product status
- ILD6070XUMA1 (Infineon Technologies): Step-down topology, higher current (700mA), extended supply range (4.5V-60V), obsolete status
- LM2704MF-ADJ/NOPB (Texas Instruments): Step-up topology, different supply range (2.2V-7V), active status
- LM3402HVMMX/NOPB (Texas Instruments): Step-down topology, lower current (500mA), extended supply range (6V-75V), active status
- LM3405AXMKE/NOPB (Texas Instruments): Step-down topology, 1A current, narrower supply range (3V-22V), active status
- LM3407MYX/NOPB (Texas Instruments): Step-down topology, lower current (350mA), supply range (4.5V-30V), active status
- LM3410XSDX/NOPB (Texas Instruments): SEPIC/step-up topology, higher current (2.8A switch), different supply range (2.7V-5.5V), active status
- LM3410YMFX/NOPB (Texas Instruments): SEPIC/step-up topology, higher current (2.8A switch), different supply range (2.7V-5.5V), active status
- LM3414HVMR/NOPB (Texas Instruments): Step-down topology, 1A current, extended supply range (4.5V-65V), active status, automotive grade
Parameter Comparison
| Parameter | MP24893DQ-LF-Z | MP24893DQ-LF-P | LM3405AXMKE/NOPB | LM3407MYX/NOPB | LM3414HVMR/NOPB |
|---|---|---|---|---|---|
| Manufacturer | MPS | MPS | TI | TI | TI |
| Type | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator |
| Topology | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Min) | 6V | 6V | 3V | 4.5V | 4.5V |
| Voltage - Supply (Max) | 36V | 36V | 22V | 30V | 65V |
| Current - Output / Channel | 1A | 1A | 1A | 350mA | 1A |
| Dimming | Analog, PWM | Analog, PWM | PWM | PWM | Analog, PWM |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Grade | Automotive | Automotive | Not specified | Not specified | Automotive |
| Package / Case | 6-VDFN Exposed Pad | 6-VDFN Exposed Pad | SOT-23-6 Thin, TSOT-23-6 | 8-PowerTSSOP, 8-MSOP | 8-PowerSOIC |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Not For New Designs | Not For New Designs | Active | Active | Active |
Engineering Selection Recommendations
Direct Replacement (Parametric Equivalent): The MP24893DQ-LF-P offers identical electrical and functional specifications to the MP24893DQ-LF-Z. Both parts share the same base product number and are classified as "Not For New Designs." Selection between these two should be based on packaging availability and supplier inventory status. The MP24893DQ-LF-P maintains 1500 units in stock compared to 3375 units for the original part number.
Active Product Alternatives for New Designs: For applications requiring an active product status with ongoing manufacturer support, the following parts are recommended based on matching core parameters:
LM3414HVMR/NOPB (Texas Instruments) provides the closest functional match with active product status. This part maintains 1A output current, step-down topology, automotive grade qualification, and analog/PWM dimming support. The supply voltage range extends to 65V maximum, providing broader input compatibility. Package differs (8-PowerSOIC vs. 6-QFN), requiring PCB layout modification.
LM3405AXMKE/NOPB (Texas Instruments) offers 1A output current and step-down topology with PWM dimming in a smaller TSOT-23-6 package. The supply voltage range is narrower (3V-22V), limiting applicability to lower-voltage systems. This part lacks automotive grade designation.
LM3407MYX/NOPB (Texas Instruments) provides step-down topology with PWM dimming and automotive-compatible temperature range. Output current is reduced to 350mA, suitable only for lower-power LED applications. Supply range (4.5V-30V) overlaps the original part's operating window.
Compliance and Certification Status: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original part's environmental certifications. Moisture sensitivity level (MSL 1, Unlimited) is consistent across all direct buck-topology alternatives, indicating equivalent handling requirements.
Frequently Asked Questions (FAQ)
Q: Can MP24893DQ-LF-P be used as a direct replacement for MP24893DQ-LF-Z?
A: Yes. Both parts are parametric equivalents with identical electrical specifications, topology, current rating, and dimming capabilities. The difference lies only in the packaging suffix designation. Verify PCB footprint compatibility and supplier availability before substitution.
Q: Why is the MP24893DQ-LF-Z marked "Not For New Designs"?
A: This status indicates the manufacturer has discontinued active development and support for this product line. While existing inventory remains available, new designs should transition to active product alternatives to ensure long-term supply chain stability and access to technical support.
Q: What is the key difference between the MP24893DQ-LF-Z and LM3414HVMR/NOPB?
A: Both are step-down LED driver ICs with 1A output current and automotive-grade qualification. The primary differences are: (1) LM3414HVMR/NOPB has active product status with ongoing support; (2) supply voltage range extends to 65V vs. 36V maximum; (3) package format differs (8-PowerSOIC vs. 6-QFN), requiring PCB redesign. Electrical performance and dimming capabilities are comparable.
Q: Can LM3407MYX/NOPB replace the MP24893DQ-LF-Z in all applications?
A: LM3407MYX/NOPB is not a universal replacement. While it shares step-down topology and PWM dimming, output current is limited to 350mA versus 1A. This part is suitable only for applications requiring less than 350mA LED current. Supply voltage range (4.5V-30V) is narrower than the original part's 6V-36V specification.
Q: What package considerations apply when switching from MP24893DQ-LF-Z to alternative parts?
A: The MP24893DQ-LF-Z uses a 6-QFN (3x3) package. Alternative parts employ different packages: LM3405AXMKE/NOPB uses TSOT-23-6, LM3407MYX/NOPB uses 8-HVSSOP, and LM3414HVMR/NOPB uses 8-PowerSOIC. Each package change requires PCB footprint modification, trace routing adjustments, and thermal management re-evaluation. Verify thermal performance in your specific application before implementation.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental certifications of the MP24893DQ-LF-Z. No additional compliance verification is required for regulatory purposes.
Q: Which substitute part is recommended for automotive applications?
A: LM3414HVMR/NOPB carries automotive grade designation, matching the MP24893DQ-LF-Z qualification level. This part is the preferred choice for automotive lighting and signage applications requiring grade-level compliance. LM3405AXMKE/NOPB and LM3407MYX/NOPB lack explicit automotive grading and should be evaluated for suitability in automotive environments.
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