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| Part Number | LM2940CSX-5.0 | LM2940SX-5.0 | LM2940CSX-9.0 | LM2940CS-5.0 |
|---|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Not For New Designs | Obsolete | Not For New Designs |
| 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 | 9V | 5V |
| Voltage - Output (Max) | - | - | - | - |
| Voltage Dropout (Max) | 1V @ 1A | 1V @ 1A | 0.8V @ 1A | 0.8V @ 1A |
| Current - Output | 1A | 1A | 1A | 1A |
| Current - Quiescent (Iq) | 15 mA | 10 mA | 10 mA | 10 mA |
| Current - Supply (Max) | 60 mA | 15 mA | 15 mA | 15 mA |
| PSRR | 72dB (120Hz) | 64dB (120Hz) | 64dB (120Hz) | 64dB (120Hz) |
| Control Features | - | - | - | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit | Over Current, Over Temperature, Reverse Polarity, Short Circuit | Over Current, Over Temperature, Reverse Polarity, Short Circuit | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | 0°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 125°C | 0°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA |
| Supplier Device Package | DDPAK/TO-263-3 | DDPAK/TO-263-3 | DDPAK/TO-263-3 | DDPAK/TO-263-3 |
