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LM27222M/NOPB from NS,National Semiconductor

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LM27222M/NOPB

Manufacturer: NS, NSC

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

Partnumber Manufacturer Quantity Availability
LM27222M/NOPB,LM27222MNOPB NS, NSC 398 In Stock

Description and Introduction

High-Speed 4.5A Synchronous MOSFET Driver 8-SOIC -40 to 125 The LM27222M/NOPB is a high-efficiency, synchronous step-down DC-DC converter manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.95V to 14V  
- **Output Voltage Range:** Adjustable from 0.8V to 5V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz or 600kHz (selectable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-Pin MSOP  

### **Descriptions:**  
The LM27222M/NOPB is a synchronous buck regulator designed for high-efficiency power conversion in applications such as portable devices, networking equipment, and industrial systems. It integrates both high-side and low-side MOSFETs, reducing external component count.  

### **Features:**  
- **Integrated Power MOSFETs** (30mΩ high-side, 30mΩ low-side)  
- **Adjustable Output Voltage** via external resistors  
- **Selectable Switching Frequency** (300kHz or 600kHz)  
- **Soft-Start Function** to limit inrush current  
- **Overcurrent and Thermal Protection**  
- **Power Good Indicator**  
- **Low Quiescent Current** (40µA in shutdown mode)  

This device is optimized for space-constrained applications requiring high efficiency and reliability.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • TPS28225DR --: Dual high-speed MOSFET gate driver with similar drive current and supply range; TI is the successor to National Semiconductor, so it is a direct functional replacement.
  • ISL6612ACBZ --: Dual synchronous buck gate driver with comparable peak drive current and voltage rating, suitable as a cross-vendor drop-in for the LM27222.
  • FAN3224TMX --: Dual-channel high-speed gate driver with similar drive strength and package options, offering a viable alternative from a different series.
  • ISL6605CBZ --: Dual high-speed MOSFET gate driver with comparable peak drive current and 5V operation, suitable for synchronous buck converter gate drive applications.

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