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| Part Number | LP3891ET-1.8/NOPB | LP3892ET-1.8/NOPB | LP3893ET-1.8/NOPB | LP3891ES-1.8/NOPB | LP3891ET-1.2/NOPB | LP3891ET-1.5/NOPB |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive |
| Output Type | Fixed | Fixed | Fixed | Fixed | Fixed | Fixed |
| Number of Regulators | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Input (Max) | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V | 5.5V |
| Voltage - Output (Min/Fixed) | 1.8V | 1.8V | 1.8V | 1.8V | 1.2V | 1.5V |
| Voltage - Output (Max) | - | - | - | - | - | - |
| Voltage Dropout (Max) | 0.4V @ 800mA | 0.50V @ 1.5A | 1V @ 1A | 0.4V @ 800mA | 0.4V @ 800mA | 0.4V @ 800mA |
| Current - Output | 800mA | 1.5A | 3A | 800mA | 800mA | 800mA |
| Current - Quiescent (Iq) | 30 µA | 30 µA | 30 µA | 30 µA | 30 µA | 30 µA |
| Current - Supply (Max) | 8 mA | 8 mA | 8 mA | 8 mA | 8 mA | 8 mA |
| PSRR | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) |
| Control Features | Enable | Enable | Enable | Enable | Enable | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole | Through Hole | Surface Mount | Through Hole | Through Hole |
| Package / Case | TO-220-5 Formed Leads | TO-220-5 Formed Leads | TO-220-5 Formed Leads | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-5 Formed Leads | TO-220-5 Formed Leads |
| Supplier Device Package | TO-220-5 | TO-220-5 | TO-220-5 | DDPAK/TO-263-5 | TO-220-5 | TO-220-5 |
