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LM2645MTDX from NS,National Semiconductor

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LM2645MTDX

Manufacturer: NS

Advanced Two-Phase Switching Controller With Two Linear Outputs

Partnumber Manufacturer Quantity Availability
LM2645MTDX NS 13000 In Stock

Description and Introduction

Advanced Two-Phase Switching Controller With Two Linear Outputs The LM2645MTDX is a dual synchronous buck regulator manufactured by National Semiconductor (NS).  

### **Key Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable (0.8V to VIN)  
- **Output Current:** Up to 1.5A per channel  
- **Switching Frequency:** 1.5MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Pin TSSOP  

### **Descriptions and Features:**  
- **Dual Output:** Two independent synchronous buck regulators.  
- **High Efficiency:** Uses synchronous rectification for improved efficiency.  
- **Low Dropout Operation:** Maintains regulation with low input-output differential.  
- **Integrated Power MOSFETs:** Reduces external component count.  
- **PWM/PFM Mode Switching:** Optimizes efficiency at light loads.  
- **Soft-Start:** Prevents inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Thermal Shutdown:** Protects the device from overheating.  

This regulator is designed for applications requiring high efficiency and compact power solutions, such as portable electronics and embedded systems.

Application Scenarios & Design Considerations

Advanced Two-Phase Switching Controller With Two Linear Outputs

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