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| Part Number | LM2940SX-12 | LM2990SX-12 | LM2940CSX-12 | LM2940S-12 | LM2940SX-10 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs |
| 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) | 26V | -26V | 26V | 26V | 26V |
| Voltage - Output (Min/Fixed) | 12V | -12V | 12V | 12V | 10V |
| Voltage - Output (Max) | - | - | - | - | - |
| Voltage Dropout (Max) | 1V @ 1A | 1V @ 1A | 0.8V @ 1A | 1V @ 1A | 1V @ 1A |
| Current - Output | 1A | 1.8A | 1A | 1A | 1A |
| Current - Quiescent (Iq) | 10 mA | 1 mA | 10 mA | 10 mA | 10 mA |
| Current - Supply (Max) | 15 mA | 5 mA | 15 mA | 15 mA | 15 mA |
| PSRR | 66dB (120Hz) | 52dB (1kHz) | 66dB (120Hz) | 66dB (120Hz) | 63dB (120Hz) |
| Control Features | - | - | - | - | - |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, 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 | -40°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | 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 | 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 | DDPAK/TO-263-3 |
