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LM26420YSQ/NOPB from NSC,National Semiconductor

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LM26420YSQ/NOPB

Manufacturer: NSC

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator 16-WQFN -40 to 125

Partnumber Manufacturer Quantity Availability
LM26420YSQ/NOPB,LM26420YSQNOPB NSC 1994 In Stock

Description and Introduction

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator 16-WQFN -40 to 125 The LM26420YSQ/NOPB is a dual synchronous buck regulator manufactured by National Semiconductor (NSC). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Dual Synchronous Buck Regulator  
- **Input Voltage Range:** 2.95V to 5.5V  
- **Output Voltage Range:** Adjustable (0.8V to VIN)  
- **Output Current:** Up to 2A per channel (total 4A)  
- **Switching Frequency:** 2.25MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 24-pin WQFN (4mm x 4mm)  

### **Descriptions:**
- The LM26420YSQ/NOPB is a high-efficiency, dual-output synchronous step-down DC-DC converter.  
- It integrates two independent regulators with internal power MOSFETs, reducing external component count.  
- Designed for space-constrained applications, it operates at a high switching frequency to minimize passive component size.  
- Features include soft-start, cycle-by-cycle current limiting, and thermal shutdown for protection.  

### **Features:**
- **Dual Outputs:** Two independent regulators in a single package.  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Adjustable Output Voltage:** Each channel can be set independently.  
- **2.25MHz Switching Frequency:** Allows for smaller inductors and capacitors.  
- **Integrated Power MOSFETs:** Reduces external component requirements.  
- **Protection Features:** Overcurrent, undervoltage lockout (UVLO), and thermal shutdown.  
- **Low Quiescent Current:** Improves efficiency in light-load conditions.  
- **Soft-Start:** Prevents inrush current at startup.  

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

Application Scenarios & Design Considerations

Dual 2.0A, High Frequency Synchronous Step-Down DC-DC Regulator 16-WQFN -40 to 125

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