| Part Number | UCC281DPTR-5G4 | UCC381DPTR-5G4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | 
|   |   | |
| Product Status | Obsolete | Discontinued at Digi-Key | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 
| Voltage - Input (Max) | 9V | 9V | 
| Voltage - Output (Min/Fixed) | 5V | 5V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 0.2V @ 200mA | 0.6V @ 1A | 
| Current - Output | 1A | 1A | 
| Current - Quiescent (Iq) | 650 µA | 650 µA | 
| Current - Supply (Max) | - | - | 
| PSRR | - | - | 
| Control Features | - | - | 
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO) | Over Temperature, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO) | 
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SOIC | 8-SOIC |