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LM26420XMH from NS,National Semiconductor

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LM26420XMH

Manufacturer: NS

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator

Partnumber Manufacturer Quantity Availability
LM26420XMH NS 4868 In Stock

Description and Introduction

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator The LM26420XMH is a dual synchronous step-down DC-DC converter manufactured by Texas Instruments (NS). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.95V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 2A per channel (dual output)  
- **Switching Frequency:** 2.25MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 20-pin HTSSOP (PowerPAD™)  

### **Descriptions:**
- The LM26420XMH is a high-efficiency, dual-channel synchronous buck regulator designed for low-voltage applications.  
- It integrates two independent step-down converters, making it suitable for powering multiple rails in compact designs.  
- The device operates at a fixed frequency for reduced noise and simplified filtering.  

### **Features:**
- **Dual Outputs:** Two independent 2A step-down regulators.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **PowerPAD™ Package:** Enhances thermal performance.  
- **Adjustable Outputs:** Set via external resistors.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low input voltage conditions.  
- **Overcurrent Protection (OCP):** Safeguards against excessive load currents.  
- **Thermal Shutdown:** Protects the device from overheating.  

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

Application Scenarios & Design Considerations

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator

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