| PartNumber | MP4558DN-LF-Z | MP4558DQ-LF-P | MP4558DN-LF |
| Description | Switching Voltage Regulators 55V, 1A non-sync Buck | Switching Voltage Regulators 55V, 1A non-sync Buck | Switching Voltage Regulators 55V, 1A non-sync Buck |
| Manufacturer | Monolithic Power Systems (MPS) | Monolithic Power Systems (MPS) | Monolithic Power Systems (MPS) |
| Product Category | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-EP-8 | QFN-10 | SOIC-EP-8 |
| Output Current | 1 A | - | 1 A |
| Topology | Buck | Buck | Buck |
| Series | MP4558 | MP4558 | MP4558 |
| Packaging | Reel | Reel | Tube |
| Product | Voltage Regulators | Voltage Regulators | Voltage Regulators |
| Type | Step-Down Converter | Step-Down Converter | Step-Down Converter |
| Brand | Monolithic Power Systems (MPS) | Monolithic Power Systems (MPS) | Monolithic Power Systems (MPS) |
| Moisture Sensitive | Yes | - | Yes |
| Product Type | Switching Voltage Regulators | Switching Voltage Regulators | Switching Voltage Regulators |
| Factory Pack Quantity | 2500 | 500 | 100 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Output Voltage | - | 0.8 V to 52 V | 0.8 V to 52 V |
| Number of Outputs | - | 1 Output | 1 Output |
| Input Voltage MAX | - | 55 V | 55 V |
| Input Voltage MIN | - | 3.8 V | 3.8 V |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Maximum Operating Temperature | - | + 125 C | + 125 C |
| Input Voltage | - | 3.8 V to 55 V | 3.8 V to 55 V |
| Operating Temperature Range | - | - 40 C to + 125 C | - 40 C to + 125 C |
| Quiescent Current | - | 140 uA | 140 uA |
| Unit Weight | - | 0.000247 oz | - |
| Switching Frequency | - | - | 2 MHz |