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LM2642MTC from NS,National Semiconductor

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LM2642MTC

Manufacturer: NS

Two-Phase Synchronous Step-Down Switching Controller

Partnumber Manufacturer Quantity Availability
LM2642MTC NS 1843 In Stock

Description and Introduction

Two-Phase Synchronous Step-Down Switching Controller The LM2642MTC is a dual synchronous buck regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** Adjustable from 0.8V to 30V  
- **Output Current:** Up to 2A per channel  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 28-Pin TSSOP (MTC)  

### **Descriptions:**  
- The LM2642MTC integrates two high-efficiency synchronous buck regulators.  
- It is designed for step-down DC-DC conversion in applications requiring multiple regulated voltages.  
- Features include internal soft-start, cycle-by-cycle current limiting, and thermal shutdown protection.  

### **Features:**  
- **Dual Outputs:** Two independent regulators in a single package.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Adjustable Outputs:** Set via external resistors.  
- **Protection Features:** Overcurrent, overtemperature, and undervoltage lockout (UVLO).  
- **Low Dropout Operation:** Maintains regulation with small input-output differentials.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official documentation.

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