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LM2743MTCX from NS,National Semiconductor

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LM2743MTCX

Manufacturer: NS

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller

Partnumber Manufacturer Quantity Availability
LM2743MTCX NS 10001 In Stock

Description and Introduction

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller The LM2743MTCX is a synchronous buck regulator controller manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 30V  
- **Output Voltage Range:** 0.6V to 5.5V  
- **Switching Frequency:** Adjustable from 50kHz to 1MHz  
- **Maximum Duty Cycle:** 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TSSOP-16  
- **Control Method:** Voltage Mode PWM  
- **Efficiency:** Up to 95%  
- **Gate Drive Output Current:** 2A (sink/source)  

### **Descriptions:**  
The LM2743MTCX is a high-performance synchronous buck regulator controller designed for high-efficiency DC-DC conversion. It integrates a high-speed gate driver and provides precise voltage regulation for power supply applications.  

### **Features:**  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Precision Reference:** 0.6V ±1% voltage reference for accurate regulation.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Soft-Start:** Programmable to limit inrush current.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Thermal Shutdown:** Protects against overheating.  

This controller is commonly used in telecom, industrial, and computing power supply applications.

Application Scenarios & Design Considerations

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller

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