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| Part Number | LP3981ILD-2.5/NOPB | LP3981ILDX-2.5/NOPB | LP3982ILD-2.5/NOPB | LP3981ILD-2.8/NOPB | LP3981ILD-2.7/NOPB |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Active | Active | Active | Active | Discontinued at Digi-Key |
| Output Configuration | Positive | Positive | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | 6V | 6V | 6V | 6V | 6V |
| Voltage - Output (Min/Fixed) | 2.5V | 2.5V | 2.5V | 2.8V | 2.7V |
| Voltage - Output (Max) | - | - | - | - | - |
| Voltage Dropout (Max) | 0.2V @ 300mA | 0.2V @ 300mA | 0.22V @ 200mA | 0.2V @ 300mA | 0.2V @ 300mA |
| Current - Output | 300mA | 300mA | 300mA | 300mA | 300mA |
| Current - Quiescent (Iq) | 120 µA | 120 µA | 270 µA | 120 µA | 120 µA |
| Current - Supply (Max) | 210 µA | 210 µA | - | 210 µA | 210 µA |
| PSRR | 50dB ~ 55dB (1kHz ~ 10kHz) | 50dB ~ 55dB (1kHz ~ 10kHz) | - | 50dB ~ 55dB (1kHz ~ 10kHz) | 50dB ~ 55dB (1kHz ~ 10kHz) |
| Control Features | Enable | Enable | Enable | Enable | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Reverse Polarity | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 85°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 6-WDFN Exposed Pad | 6-WDFN Exposed Pad | 8-WFDFN Exposed Pad | 6-WDFN Exposed Pad | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-WSON (3x4) | 6-WSON (3x4) | 8-WSON (3x2.5) | 6-WSON (3x4) | 6-WSON (3x4) |
