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| Part Number | LM2990S-12 | LM2990T-12 | LM2990S-15 | LM2990SX-12 | LM2940S-12 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | National Semiconductor | Texas Instruments | Texas Instruments |
| Product Status | Not For New Designs | Active | Active | Not For New Designs | Not For New Designs |
| Output Configuration | Negative | Negative | Negative | Negative | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | -26V | -6V | -26V | -26V | 26V |
| Voltage - Output (Min/Fixed) | -12V | -12V | -15V | -12V | 12V |
| Voltage - Output (Max) | - | - | - | - | - |
| Voltage Dropout (Max) | 1V @ 1A | 1V @ 1A | 1V @ 1A | 1V @ 1A | 1V @ 1A |
| Current - Output | 1.8A | 1.8A | 1.8A | 1.8A | 1A |
| Current - Quiescent (Iq) | 1 mA | 5 mA | 1 mA | 1 mA | 10 mA |
| Current - Supply (Max) | 5 mA | 50 mA | 5 mA | 5 mA | 15 mA |
| PSRR | 52dB (1kHz) | 52dB (1kHz) | 52dB (1kHz) | 52dB (1kHz) | 66dB (120Hz) |
| Control Features | - | - | - | - | - |
| Protection Features | Over Temperature, Short Circuit | Over Temperature, Short Circuit | Over Temperature, Short Circuit | Over Temperature, Short Circuit | Over Current, Over Temperature, Reverse Polarity, Short Circuit |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C (TJ) | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | TO-263-4, D²Pak (3 Leads + Tab), TO-263AA | TO-220-3 | 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 | TO-220-3 | DDPAK/TO-263-3 | DDPAK/TO-263-3 | DDPAK/TO-263-3 |
