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MAX1922 from MAX,MAXIM - Dallas Semiconductor

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MAX1922

Manufacturer: MAX

1A Current-Limited Switch for 2 USB Ports

Partnumber Manufacturer Quantity Availability
MAX1922 MAX 25 In Stock

Description and Introduction

1A Current-Limited Switch for 2 USB Ports The MAX1922 is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable from 0.8V to 5.5V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin QSOP  

### **Descriptions:**  
The MAX1922 is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in applications such as telecom, networking, and industrial systems. It integrates both high-side and low-side MOSFETs, reducing external component count.  

### **Features:**  
- **Integrated Power MOSFETs** (eliminates need for external FETs)  
- **Adjustable Output Voltage** (via external resistors)  
- **Overcurrent and Thermal Protection**  
- **Soft-Start Function** (reduces inrush current)  
- **Low Dropout Operation** (allows high duty cycles)  
- **Synchronous Rectification** (improves efficiency)  
- **Wide Input Voltage Range** (suitable for various power sources)  

For more detailed information, refer to the official datasheet from Analog Devices (formerly Maxim Integrated).

Application Scenarios & Design Considerations

1A Current-Limited Switch for 2 USB Ports

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