| Part Number | LP38858S-1.2 | LP38858T-1.2 | 
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | 
| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | 
|   |   | |
| Product Status | Active | Obsolete | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 
| Voltage - Input (Max) | 5.5V | 5.5V | 
| Voltage - Output (Min/Fixed) | 1.2V | 1.2V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 0.18V @ 1.5A | 0.18V @ 1.5A | 
| Current - Output | 1.5A | 1.5A | 
| Current - Quiescent (Iq) | 8.5 mA | 8.5 mA | 
| Current - Supply (Max) | 15 mA | 15 mA | 
| PSRR | 80dB ~ 65dB (120Hz ~ 1kHz) | 80dB ~ 65dB (120Hz ~ 1kHz) | 
| Control Features | Soft Start | Soft Start | 
| Protection Features | 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 | 
| Mounting Type | Surface Mount | Through Hole | 
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-220-5 Formed Leads | 
| Supplier Device Package | DDPAK/TO-263-5 | TO-220-5 |