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| PartNumber | RT4803A | RT4803AWSC | RT4803WSC |
| Description | IC REG BOOST ADJ 2A 16WLCSP | IC REG BOOST ADJ 2A 16WLCSP | |
| Manufacturer | Richtek USA Inc. | Richtek USA Inc. | Richtek USA Inc. |
| Product Category | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Series | - | - | - |
| Packaging | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging | Digi-ReelR Alternate Packaging |
| Package Case | 16-UFBGA, WLCSP | 16-UFBGA, WLCSP | 16-UFBGA, WLCSP |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Output Type | Adjustable | Adjustable | Adjustable |
| Function | Step-Up | Step-Up | Step-Up |
| Supplier Device Package | 16-WLCSP (1.67x1.67) | 16-WLCSP (1.67x1.67) | 16-WLCSP (1.67x1.67) |
| Number of Outputs | 1 | 1 | 1 |
| Topology | Boost | Boost | Boost |
| Frequency Switching | 2.5MHz | 2.5MHz | 2.5MHz |
| Current Output | 2A (Switch) | 2A (Switch) | 2A (Switch) |
| Output Configuration | Positive | Positive | Positive |
| Voltage Output Min Fixed | 2.85V | 2.85V | 2.85V |
| Voltage Output Max | 4.4V | 4.4V | 4.4V |
| Synchronous Rectifier | Yes | Yes | Yes |
| Voltage Input Min | 1.8V | 1.8V | 1.8V |
| Voltage Input Max | 5V | 5V | 5V |