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LM2744MTCX from NS,NS,National Semiconductor

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LM2744MTCX

Manufacturer: NS,NS

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference

Partnumber Manufacturer Quantity Availability
LM2744MTCX NS,NS 80000 In Stock

Description and Introduction

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference The LM2744MTCX is a synchronous buck regulator controller manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 15V  
- **Output Voltage Range:** 0.6V to 5.5V  
- **Switching Frequency:** Adjustable from 50kHz to 1MHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TSSOP-16  
- **Control Method:** Voltage Mode PWM  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage:** 0.6V ±1%  
- **Maximum Output Current:** Dependent on external MOSFETs  

### **Descriptions:**  
The LM2744MTCX is a high-performance synchronous buck regulator controller designed for DC-DC conversion applications. It provides precise voltage regulation and supports a wide input voltage range, making it suitable for various power supply designs. The device integrates features such as soft-start, overcurrent protection, and thermal shutdown to enhance system reliability.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 15V)**  
- **Adjustable Switching Frequency (50kHz to 1MHz)**  
- **Precision 0.6V Reference (±1%)**  
- **Synchronous Rectification for High Efficiency**  
- **Programmable Soft-Start**  
- **Overcurrent Protection (OCP)**  
- **Thermal Shutdown Protection**  
- **TSSOP-16 Package for Space-Constrained Designs**  
- **Supports External MOSFETs for High Current Applications**  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller with External Reference

Alternative Part Number

  • TPS40304DGQR --: Synchronous buck controller with similar voltage-mode control and wide input range; TI is the successor to National Semiconductor, so pinout and function are closely matched.
  • ISL6545CBZ --: Single-phase synchronous buck PWM controller with comparable input voltage range and gate drive capability, suitable as a functional replacement.
  • LTC3851EGN --: Wide input synchronous step-down controller with similar control architecture and external MOSFET drive, usable as an alternative with minor layout adjustments.

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