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| Part Number | LP2981IBP-3.2 | LP2981IBPX-3.2 | LP2981AIBP-3.2 | 
|---|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | National Semiconductor | 
| Product Status | Active | Obsolete | Obsolete | 
| Output Configuration | - | Positive | Positive | 
| Output Type | - | Fixed | Fixed | 
| Number of Regulators | - | 1 | 1 | 
| Voltage - Input (Max) | - | 16V | 16V | 
| Voltage - Output (Min/Fixed) | - | 3.2V | 3.2V | 
| Voltage - Output (Max) | - | - | - | 
| Voltage Dropout (Max) | - | 0.37V @ 100mA | 0.37V @ 100mA | 
| Current - Output | - | 100mA | 100mA | 
| Current - Quiescent (Iq) | - | 95 µA | 95 µA | 
| Current - Supply (Max) | - | 1.7 mA | 1.7 mA | 
| PSRR | - | 63dB (1kHz) | 63dB (1kHz) | 
| Control Features | - | Enable | Enable | 
| Protection Features | - | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit | 
| Operating Temperature | - | -40°C ~ 125°C | -40°C ~ 125°C | 
| Mounting Type | - | Surface Mount | Surface Mount | 
| Package / Case | - | 5-VFBGA | 5-VFBGA | 
| Supplier Device Package | - | 5-µSMD (0.93x1.11) | 5-µSMD (0.93x1.11) |