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LM5642MTCX from NS,National Semiconductor

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LM5642MTCX

Manufacturer: NS

High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization

Partnumber Manufacturer Quantity Availability
LM5642MTCX NS 718 In Stock

Description and Introduction

High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization The LM5642MTCX is a dual synchronous buck controller manufactured by National Semiconductor (NS). Here are the key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable down to 0.6V  
- **Switching Frequency:** Adjustable from 50kHz to 1MHz  
- **Output Current:** Supports high-current applications (external FETs required)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 28-pin TSSOP  

### **Descriptions:**  
- The LM5642MTCX is designed for high-efficiency, dual-output synchronous buck converters.  
- It provides independent control for two outputs, making it suitable for multi-rail power supply applications.  
- The device includes integrated gate drivers for N-channel MOSFETs.  

### **Features:**  
- **Dual Output Control:** Independent PWM controllers for two outputs.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Soft-Start:** Prevents inrush current at startup.  
- **Current Mode Control:** Enhances transient response and stability.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Thermal Shutdown:** Protects the device from overheating.  

This information is based on the manufacturer's datasheet. For detailed application-specific requirements, refer to the official documentation.

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