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| Part Number | LP2981-29DBVT | LP2981A-29DBVT | LP2981-28DBVT | LP2981-29DBVR |
|---|---|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Obsolete | Active | Active |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | 16V | 16V | 16V | 16V |
| Voltage - Output (Min/Fixed) | 2.9V | 2.9V | 2.8V | 2.9V |
| Voltage - Output (Max) | - | - | - | - |
| Voltage Dropout (Max) | 0.375V @ 100mA | 0.37V @ 100mA | 0.37V @ 100mA | 0.37V @ 100mA |
| Current - Output | 100mA | 100mA | 100mA | 100mA |
| Current - Quiescent (Iq) | 125 µA | 95 µA | 95 µA | 95 µA |
| Current - Supply (Max) | 1.7 mA | 1.7 mA | 1.7 mA | 1.7 mA |
| PSRR | 63dB (1kHz) | 63dB (1kHz) | 63dB (1kHz) | 63dB (1kHz) |
| Control Features | Enable | Enable | Enable | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 | SOT-23-5 | SOT-23-5 | SOT-23-5 |
