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| Part Number | KA378R33TU | KA278R33TU | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Product Status | Active | Active | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 
| Voltage - Input (Max) | 35V | 35V | 
| Voltage - Output (Min/Fixed) | 3.3V | 3.3V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 0.5V @ 3A | 0.5V @ 2A | 
| Current - Output | 3A | 2A | 
| Current - Quiescent (Iq) | 10 mA | 10 mA | 
| Current - Supply (Max) | - | - | 
| PSRR | - | - | 
| Control Features | - | Enable | 
| Protection Features | Over Current, Over Temperature, Over Voltage, Short Circuit | Over Current, Over Temperature, Over Voltage, Short Circuit | 
| Operating Temperature | -20°C ~ 80°C | -20°C ~ 80°C | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-220-4 Full Pack | TO-220-4 Full Pack | 
| Supplier Device Package | TO-220F-4L | TO-220F-4 |