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| Part Number | LM78M12CT | LM79M12CT | LM78M15CT | LM78M18CT | LM78T12CT | LM7812CT |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | National Semiconductor | Texas Instruments | onsemi | onsemi | onsemi |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | Active |
| Output Configuration | Positive | Negative | Positive | Positive | Positive | - |
| Output Type | Fixed | Fixed | Fixed | Fixed | Fixed | - |
| Number of Regulators | 1 | 1 | 1 | 1 | 1 | - |
| Voltage - Input (Max) | 35V | -35V | 35V | 35V | 35V | - |
| Voltage - Output (Min/Fixed) | 12V | -12V | 15V | 18V | 12V | - |
| Voltage - Output (Max) | - | - | - | - | - | - |
| Voltage Dropout (Max) | 2V @ 500mA (Typ) | 1.1V @ 500mA | - | 2V @ 500mA (Typ) | 2.5V @ 3A | - |
| Current - Output | 500mA | 500mA | 500mA | 500mA | 3A | - |
| Current - Quiescent (Iq) | 6 mA | 3 mA | 3 mA | 6 mA | 6 mA | - |
| Current - Supply (Max) | - | - | - | - | - | - |
| PSRR | 80dB (120Hz) | 70dB (120Hz) | 69dB (120Hz) | 70dB (120Hz) | 67dB (120Hz) | - |
| Control Features | - | - | - | - | - | - |
| Protection Features | Over Temperature, Short Circuit | Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Temperature, Short Circuit | Over Temperature, Short Circuit | - |
| Operating Temperature | 0°C ~ 125°C | 0°C ~ 125°C (TJ) | -40°C ~ 125°C | 0°C ~ 125°C | 0°C ~ 125°C | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | - |
| Package / Case | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 | - |
| Supplier Device Package | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 | TO-220-3 | - |
