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LM5642XMT from NS,National Semiconductor

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LM5642XMT

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM5642XMT NS 1883 In Stock

Description and Introduction

LM5642/LM5642X High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization The LM5642XMT is a dual synchronous buck regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 26V  
- **Output Voltage Range:** Adjustable from 0.6V to 5.5V  
- **Output Current:** Up to 2A per channel (dual output)  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-pin TSSOP  

### **Descriptions and Features:**  
- **Dual Synchronous Buck Regulator:** Provides two independent step-down DC-DC converters.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Integrated MOSFET Drivers:** Simplifies design by eliminating external drivers.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Current Mode Control:** Ensures stable operation with fast transient response.  
- **Thermal Shutdown Protection:** Safeguards against overheating.  

This regulator is commonly used in networking, industrial, and telecom applications requiring efficient power conversion.

Partnumber Manufacturer Quantity Availability
LM5642XMT NS 32 In Stock

Description and Introduction

LM5642/LM5642X High Voltage, Dual Synchronous Buck Converter with Oscillator Synchronization The LM5642XMT is a dual synchronous buck regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 26.5V  
- **Output Voltage Range:** Adjustable from 0.8V to 5.5V  
- **Output Current:** Up to 2A per channel (dual-channel)  
- **Switching Frequency:** Adjustable from 50kHz to 1MHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Pin TSSOP  

### **Descriptions and Features:**  
- **Dual Synchronous Buck Regulator:** Provides two independent step-down DC-DC converters.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Integrated Power MOSFETs:** Reduces external component count.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Current Mode Control:** Improves transient response and stability.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Synchronization Capability:** Can sync to an external clock.  

This regulator is commonly used in industrial, automotive, and telecom applications requiring efficient power conversion.

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