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| Part Number | LD2981ABM38TR | LD2981ABM18TR | LD2981ABM30TR | LD2981ABM33TR |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| 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) | 3.8V | 1.8V | 3V | 3.3V |
| Voltage - Output (Max) | - | - | - | - |
| Voltage Dropout (Max) | 0.375V @ 100mA | 0.375V @ 100mA | 0.375V @ 100mA | 0.375V @ 100mA |
| Current - Output | 100mA | 100mA | 100mA | 100mA |
| Current - Quiescent (Iq) | 150 µA | 150 µA | 150 µA | 150 µA |
| Current - Supply (Max) | 2.6 mA | 2.6 mA | 2.6 mA | 2.6 mA |
| PSRR | 63dB (1kHz) | 63dB (1kHz) | 63dB (1kHz) | 63dB (1kHz) |
| Control Features | Enable | Enable | Enable | Enable |
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C | -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 |
