| Part Number | LP3990SD-1.8 | LP3990SD-1.5 |
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments |
| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear |
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| Product Status | Active | Obsolete |
| Output Configuration | Positive | Positive |
| Output Type | Fixed | Fixed |
| Number of Regulators | 1 | 1 |
| Voltage - Input (Max) | 6V | 6V |
| Voltage - Output (Min/Fixed) | 1.8V | 1.5V |
| Voltage - Output (Max) | - | - |
| Voltage Dropout (Max) | 0.2V @ 150mA | 0.2V @ 150mA |
| Current - Output | 150mA | 150mA |
| Current - Quiescent (Iq) | 80 µA | 80 µA |
| Current - Supply (Max) | 120 µA | 120 µA |
| PSRR | 55dB ~ 35dB (1kHz ~ 10kHz) | 55dB ~ 35dB (1kHz ~ 10kHz) |
| Control Features | Enable | Enable |
| Protection Features | Over Temperature, Short Circuit | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 6-WDFN Exposed Pad | 6-WDFN Exposed Pad |
| Supplier Device Package | 6-WSON (3x3) | 6-WSON (3x3) |