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MAX1922ESA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1922ESA+

Manufacturer: MAXIM

1A Current-Limited Switch for 2 USB Ports

Partnumber Manufacturer Quantity Availability
MAX1922ESA+ MAXIM 1000 In Stock

Description and Introduction

1A Current-Limited Switch for 2 USB Ports The MAX1922ESA+ is a step-down DC-DC converter manufactured by **MAXIM** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (ESA+)  

### **Descriptions:**  
The MAX1922ESA+ is a synchronous step-down DC-DC converter optimized for high efficiency and compact designs. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1MHz switching frequency, allowing the use of small inductors and capacitors. It is suitable for battery-powered applications, portable devices, and point-of-load regulation.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Pulse-Width Modulation (PWM) Operation:** Ensures stable performance under varying loads.  
- **Low Dropout Operation:** Maintains regulation even when the input voltage is close to the output voltage.  
- **Internal Soft-Start:** Prevents inrush current during startup.  
- **Thermal Shutdown Protection:** Safeguards the device from overheating.  
- **Short-Circuit Protection:** Protects the converter under fault conditions.  
- **Small Footprint:** 8-pin SOIC package for space-constrained applications.  

This information is based solely on the manufacturer's datasheet for the MAX1922ESA+.

Application Scenarios & Design Considerations

1A Current-Limited Switch for 2 USB Ports

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