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LM5642XMHX from NS,National Semiconductor

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LM5642XMHX

Manufacturer: NS

LM5642/LM5642X High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization

Partnumber Manufacturer Quantity Availability
LM5642XMHX NS 2598 In Stock

Description and Introduction

LM5642/LM5642X High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization The LM5642XMHX is a dual-channel, high-efficiency synchronous buck controller manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.6V to 5.5V (adjustable)  
- **Switching Frequency:** Adjustable (300kHz to 1MHz)  
- **Maximum Output Current:** Up to 12A per channel (dependent on external components)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 20-pin HTSSOP (PowerPAD™)  

### **Descriptions:**  
The LM5642XMHX is designed for high-performance power supply applications, providing dual synchronous buck regulation with high efficiency and precise voltage control. It supports adjustable frequency operation and integrates features for robust power management.  

### **Features:**  
- **Dual Independent Buck Controllers**  
- **Adjustable Soft-Start**  
- **Cycle-by-Cycle Current Limiting**  
- **Power Good Indicator**  
- **Synchronizable Switching Frequency**  
- **Thermal Shutdown Protection**  
- **Wide Input Voltage Range**  

This device is commonly used in industrial, automotive, and telecom applications requiring high-efficiency power conversion.

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