100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator The LM3480IM3X-3.3 is a step-down DC-DC converter manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 35V  
- **Output Current:** Up to 100mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**  
- The LM3480IM3X-3.3 is a high-efficiency, step-down (buck) DC-DC converter.  
- It integrates a high-side N-channel MOSFET switch for compact design.  
- Designed for low-power applications requiring a regulated 3.3V output.  

### **Features:**  
- **Fixed Output Voltage:** 3.3V  
- **Low Quiescent Current:** 40µA (typical)  
- **Internal Soft-Start:** Reduces inrush current  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Short-Circuit Protection:** Enhances reliability  
- **Small Footprint:** Suitable for space-constrained applications  

This information is sourced from the manufacturer's datasheet.

100 mA, SOT-23, Quasi Low-Dropout Linear Voltage Regulator