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| PartNumber | A4490EES-T | A4490EESTR | A4490EESTR-T |
| Description | IC REG BUCK ADJ TRPL 20QFN | IC REG BUCK ADJ TRPL 20QFN | |
| Manufacturer | - | Allegro MicroSystems, LLC | Allegro MicroSystems, LLC |
| Product Category | - | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Series | - | - | - |
| Packaging | - | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging |
| Package Case | - | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad |
| Operating Temperature | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | - | Surface Mount | Surface Mount |
| Output Type | - | Adjustable | Adjustable |
| Function | - | Step-Down | Step-Down |
| Supplier Device Package | - | 20-QFN (4x4) | 20-QFN (4x4) |
| Number of Outputs | - | 3 | 3 |
| Topology | - | Buck | Buck |
| Frequency Switching | - | 550kHz | 550kHz |
| Current Output | - | - | - |
| Output Configuration | - | Positive | Positive |
| Voltage Output Min Fixed | - | 0.8V | 0.8V |
| Voltage Output Max | - | 30.6V | 30.6V |
| Synchronous Rectifier | - | No | No |
| Voltage Input Min | - | 4.5V | 4.5V |
| Voltage Input Max | - | 34V | 34V |