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| Part Number | FAN1581M12X | FAN1581M15X | FAN1582M12X | FAN1581M12 | 
|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | onsemi | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | 
| Output Configuration | Positive | Positive | Positive | Positive | 
| Output Type | Fixed | Fixed | Fixed | Fixed | 
| Number of Regulators | 1 | 1 | 1 | 1 | 
| Voltage - Input (Max) | 7V | 7V | 7V | 7V | 
| Voltage - Output (Min/Fixed) | 1.2V | 1.5V | 1.2V | 1.2V | 
| Voltage - Output (Max) | - | - | - | - | 
| Voltage Dropout (Max) | 1.18V @ 5A | 1.18V @ 5A | 1.18V @ 3A | 1.18V @ 5A | 
| Current - Output | 5A | 5A | 3A | 5A | 
| Current - Quiescent (Iq) | 6 mA | 6 mA | 6 mA | 6 mA | 
| Current - Supply (Max) | - | - | - | - | 
| PSRR | 80dB (120Hz) | 80dB (120Hz) | 80dB (120Hz) | 80dB (120Hz) | 
| Control Features | - | - | - | - | 
| Protection Features | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | Over Current, Over Temperature | 
| Operating Temperature | 0°C ~ 125°C | 0°C ~ 125°C | -65°C ~ 150°C | 0°C ~ 125°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | 
| Supplier Device Package | TO-263-5 | TO-263-5 | TO-263-5 | TO-263-5 |