| Part Number | LM2937IMPX-12 | LM2937IMP-12 | 
|---|---|---|
| Manufacturer | National Semiconductor | Texas Instruments | 
| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | 
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| Product Status | Active | Not For New Designs | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 
| Voltage - Input (Max) | 26V | 26V | 
| Voltage - Output (Min/Fixed) | 12V | 12V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 1V @ 50mA | 1V @ 50mA | 
| Current - Output | 400mA | 400mA | 
| Current - Quiescent (Iq) | 2 mA | 2 mA | 
| Current - Supply (Max) | 20 mA | 20 mA | 
| PSRR | - | - | 
| Control Features | - | - | 
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA | 
| Supplier Device Package | SOT-223-4 | SOT-223-4 |