| Part Number | FAN1538PAX | FAN1538PBX | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | 
| Category | PMIC - Voltage Regulators - Linear | PMIC - Voltage Regulators - Linear | 
| 
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| Product Status | Active | Active | 
| Output Configuration | Positive | Positive | 
| Output Type | Fixed | Adjustable (Fixed) | 
| Number of Regulators | 2 | 2 | 
| Voltage - Input (Max) | 5.25V | 5.25V | 
| Voltage - Output (Min/Fixed) | 3.3V, 2.5V | 1.4V (3.3V) | 
| Voltage - Output (Max) | - | 5.25V | 
| Voltage Dropout (Max) | - | - | 
| Current - Output | 1A, 1A | 1A, 1A | 
| Current - Quiescent (Iq) | 15 mA | 15 mA | 
| Current - Supply (Max) | - | - | 
| PSRR | - | - | 
| Control Features | Soft Start | Soft Start | 
| Protection Features | Over Current, Over Temperature, Under Voltage Lockout (UVLO) | Over Current, Over Temperature, Under Voltage Lockout (UVLO) | 
| Operating Temperature | 0°C ~ 125°C (TA) | 0°C ~ 125°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | SPak-5 (5 leads + Tab) | SPak-5 (5 leads + Tab) | 
| Supplier Device Package | S-PAK-5 | S-PAK-5 |