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MP2307DN-LF-Z Equivalent & Substitute Parts
Part Overview
The MP2307DN-LF-Z is a buck switching regulator IC from Monolithic Power Systems Inc., designed for positive adjustable output voltage regulation with 3A output current capability. This component functions as a step-down converter with a single adjustable output, operating across an input voltage range of 4.75V to 23V and output voltage range of 0.925V to 20V. The device features synchronous rectification and operates at a switching frequency of 340kHz.
The MP2307DN-LF-Z carries a product status designation of "Not For New Designs," indicating that while the component remains available in inventory (33,920 pcs), it is not recommended for new design implementations. This status necessitates identification of suitable substitute components that maintain functional and electrical compatibility while supporting ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems Inc. |
| Function | Step-Down (Buck) |
| Output Configuration | Positive Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min/Max) | 4.75V / 23V |
| Voltage - Output (Min/Max) | 0.925V / 20V |
| Current - Output | 3A |
| Frequency - Switching | 340kHz |
| Synchronous Rectifier | Yes |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Operating Temperature | -40°C ~ 85°C (TA) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the MP2307DN-LF-Z is determined by strict alignment of the following critical parameters:
- Input voltage range: 4.75V minimum to 23V maximum
- Output voltage range: 0.925V minimum to 20V maximum
- Output current capability: 3A
- Switching frequency: 340kHz
- Synchronous rectification: Required
- Package type: 8-SOIC with exposed pad
- Topology: Buck (step-down)
- Output configuration: Positive adjustable
The MP1484EN-LF-Z meets all electrical and mechanical substitution criteria. Both devices share identical input/output voltage specifications, current ratings, switching frequency, synchronous rectification capability, and package configuration. Substitution is valid based on these matching parameters.
Parameter Comparison
| Parameter | MP2307DN-LF-Z | MP1484EN-LF-Z |
|---|---|---|
| Manufacturer | Monolithic Power Systems Inc. | Monolithic Power Systems Inc. |
| Function | Step-Down | Step-Down |
| Output Configuration | Positive Adjustable | Positive Adjustable |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 4.75V | 4.75V |
| Voltage - Input (Max) | 23V | 23V |
| Voltage - Output (Min) | 0.925V | 0.925V |
| Voltage - Output (Max) | 20V | 20V |
| Current - Output | 3A | 3A |
| Frequency - Switching | 340kHz | 340kHz |
| Synchronous Rectifier | Yes | Yes |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) Exposed Pad | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Operating Temperature | -40°C ~ 85°C | -20°C ~ 85°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 2A (4 Weeks) | 2 (1 Year) |
Engineering Selection Recommendations
The MP1484EN-LF-Z serves as a direct functional equivalent to the MP2307DN-LF-Z based on matching electrical specifications and package configuration. Both devices are ROHS3 compliant and manufactured by Monolithic Power Systems Inc.
The primary distinction between the two components is the operating temperature range. The MP2307DN-LF-Z operates from -40°C to 85°C, while the MP1484EN-LF-Z operates from -20°C to 85°C. Applications requiring operation below -20°C ambient temperature must retain the MP2307DN-LF-Z. For applications within the -20°C to 85°C range, the MP1484EN-LF-Z provides equivalent performance.
The MP1484EN-LF-Z also features an extended moisture sensitivity level specification (1 Year at MSL 2 versus 4 Weeks at MSL 2A), which may provide advantages for extended storage and supply chain handling.
Frequently Asked Questions (FAQ)
Q: Can the MP1484EN-LF-Z replace the MP2307DN-LF-Z in all applications?
A: The MP1484EN-LF-Z is electrically and mechanically compatible with the MP2307DN-LF-Z for applications operating within the -20°C to 85°C temperature range. Applications requiring operation below -20°C must use the MP2307DN-LF-Z.
Q: Are the package dimensions identical between these two parts?
A: Yes. Both the MP2307DN-LF-Z and MP1484EN-LF-Z use the 8-SOIC (0.154", 3.90mm Width) Exposed Pad package configuration, ensuring identical PCB footprint and layout compatibility.
Q: What is the significance of the different MSL ratings?
A: The MP1484EN-LF-Z carries an MSL rating of 2 (1 Year), while the MP2307DN-LF-Z carries an MSL rating of 2A (4 Weeks). The extended MSL specification of the MP1484EN-LF-Z allows for longer storage periods before moisture absorption becomes a concern, potentially reducing component degradation during extended inventory holding.
Q: Do both parts support the same input and output voltage ranges?
A: Yes. Both components support identical input voltage range (4.75V to 23V) and output voltage range (0.925V to 20V), with matching 3A output current capability and 340kHz switching frequency.
Q: Are there any compliance differences between these parts?
A: Both the MP2307DN-LF-Z and MP1484EN-LF-Z are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications.
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