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| Part Number | L4947 | L4947H | L4947L | L4945 |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | 26V | 26V | 26V | 26V |
| Voltage - Output (Min/Fixed) | 5V | 5V | 5V | 5V |
| Voltage - Output (Max) | - | - | - | - |
| Voltage Dropout (Max) | 0.75V @ 500mA | 0.75V @ 500mA | 0.75V @ 500mA | 0.75V @ 500mA |
| Current - Output | 500mA | 500mA | 500mA | 500mA |
| Current - Quiescent (Iq) | 13 mA | 13 mA | 13 mA | 13 mA |
| Current - Supply (Max) | 180 mA | 180 mA | 180 mA | 180 mA |
| PSRR | 60dB (120Hz) | 60dB (120Hz) | 60dB (120Hz) | 60dB (120Hz) |
| Control Features | Reset | Reset | Reset | - |
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Over Voltage, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Pentawatt-5 (Vertical, Bent and Staggered Leads) | Pentawatt-5 (Horizontal, Bent and Staggered Leads) | Pentawatt-5 (Vertical, Bent and Staggered Leads) | TO-220-3 |
| Supplier Device Package | 5-PENTAWATT | 5-PENTAWATT | 5-PENTAWATT | TO-220 |
