PowerWise? 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation The LM3410XSD is a switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage:** Adjustable (up to 24V)  
- **Switching Frequency:** 1.6MHz (typical)  
- **Output Current:** Up to 525mA  
- **Efficiency:** Up to 88%  
- **Package:** SOT-23-5  

### **Descriptions and Features:**  
- **Buck/Boost Regulator:** Can operate in buck or boost mode depending on input/output conditions.  
- **Integrated Power Switch:** Includes a 1.6A, 0.2Ω internal switch.  
- **Low Quiescent Current:** 17μA (typical) in shutdown mode.  
- **PWM Dimming Control:** Supports LED brightness control via PWM input.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Wide Application Range:** Suitable for LED drivers, portable devices, and battery-powered systems.  

This information is based on the manufacturer's datasheet.

PowerWise? 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation