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| Part Number | LP38859S-1.2 | LP38859T-1.2 | LP38859SX-1.2 | LP38855S-1.2 | LP38856S-1.2 | LP38858S-1.2 |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | National Semiconductor | National Semiconductor | Texas Instruments | Texas Instruments | National Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Not For New Designs | Obsolete | Active |
| 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) | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V |
| Voltage - Output (Max) | - | - | - | - | - | - |
| Voltage Dropout (Max) | 0.45V @ 3A | 0.45V @ 3A | 0.45V @ 3A | 0.18V @ 1.5A | 0.45V @ 3A | 0.18V @ 1.5A |
| Current - Output | 3A | 3A | 3A | 1.5A | 3A | 1.5A |
| Current - Quiescent (Iq) | 8.5 mA | 8.5 mA | 8.5 mA | 300 µA | 300 µA | 8.5 mA |
| Current - Supply (Max) | 15 mA | 15 mA | 15 mA | 15 mA | 15 mA | 15 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 | Soft Start | Soft Start | Soft Start | Enable | Enable | Soft Start |
| Protection Features | 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) | 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 | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-5 Formed Leads | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA |
| Supplier Device Package | DDPAK/TO-263-5 | TO-220-5 | DDPAK/TO-263-5 | DDPAK/TO-263-5 | DDPAK/TO-263-5 | DDPAK/TO-263-5 |
