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| Part Number | L4940D2T5 | L4940D2T85 | 
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | 
| Product Status | Obsolete | Obsolete | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 
| Voltage - Input (Max) | 17V | 17V | 
| Voltage - Output (Min/Fixed) | 5V | 8.5V | 
| Voltage - Output (Max) | - | - | 
| Voltage Dropout (Max) | 0.9V @ 1.5A | 0.9V @ 1.5A | 
| Current - Output | 1.5A | 1.5A | 
| Current - Quiescent (Iq) | 8 mA | 8 mA | 
| Current - Supply (Max) | 50 mA | 50 mA | 
| PSRR | 68dB (120Hz) | 68dB (120Hz) | 
| Control Features | - | - | 
| Protection Features | Over Temperature, Reverse Polarity, Short Circuit | Over Temperature, Reverse Polarity, Short Circuit | 
| Operating Temperature | -40°C ~ 150°C | -40°C ~ 150°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB | TO-263-3, D²Pak (2 Leads + Tab), TO-263AB | 
| Supplier Device Package | D2PAK | D2PAK |