| Part Number | LP38511TSX-1.8/NOPB | LP38512TSX-1.8/NOPB | 
|---|---|---|
| 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) | 1.8V | 1.8V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 0.26V @ 800mA | 0.40V @ 1.5A | 
| Current - Output | 800mA | 1.5A | 
| Current - Quiescent (Iq) | 3.5 µA | 7.5 mA | 
| Current - Supply (Max) | 13 mA | 14 mA | 
| PSRR | 73dB ~ 70dB (120Hz ~ 1kHz) | 73dB (120Hz ~ 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 | 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 | DDPAK/TO-263-5 |