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LM27222SD/NOPB from NSC,National Semiconductor

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LM27222SD/NOPB

Manufacturer: NSC

High-Speed 4.5A Synchronous MOSFET Driver 8-WSON -40 to 125

Partnumber Manufacturer Quantity Availability
LM27222SD/NOPB,LM27222SDNOPB NSC 750 In Stock

Description and Introduction

High-Speed 4.5A Synchronous MOSFET Driver 8-WSON -40 to 125 The **LM27222SD/NOPB** is a synchronous buck regulator manufactured by **National Semiconductor (NSC)**. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.6V to VIN  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-Pin LLP (3mm x 3mm)  

### **Descriptions:**  
- The LM27222SD/NOPB is a high-efficiency, synchronous step-down DC-DC converter optimized for point-of-load (POL) applications.  
- It integrates both high-side and low-side MOSFETs, reducing external component count.  
- Designed for fast transient response and stable operation with ceramic capacitors.  

### **Features:**  
- **Integrated Power MOSFETs** (30mΩ high-side, 20mΩ low-side)  
- **Adjustable Output Voltage** via external resistors  
- **Fixed-Frequency PWM Operation** for predictable noise performance  
- **Internal Soft-Start** to limit inrush current  
- **Overcurrent and Thermal Protection**  
- **Low Quiescent Current** in shutdown mode (<1µA)  

This regulator is commonly used in **FPGA, DSP, and ASIC power supplies**, as well as **portable and networking equipment**.  

*(Note: NSC was acquired by Texas Instruments in 2011.)*

Application Scenarios & Design Considerations

High-Speed 4.5A Synchronous MOSFET Driver 8-WSON -40 to 125

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