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MAX1823 from MAXIM,MAXIM - Dallas Semiconductor

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MAX1823

Manufacturer: MAXIM

Dual USB Switch with Fault Blanking and Autoreset

Partnumber Manufacturer Quantity Availability
MAX1823 MAXIM 47 In Stock

Description and Introduction

Dual USB Switch with Fault Blanking and Autoreset The MAX1823 is a step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2.5V to 5.5V (via external resistors)  
- **Output Current:** Up to 300mA (depending on input voltage)  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin µMAX® (ultra-small footprint)  

### **Descriptions:**  
The MAX1823 is a low-power, step-up DC-DC converter designed for battery-powered applications. It integrates a power switch and features a low start-up voltage, making it suitable for single-cell or dual-cell battery systems.  

### **Features:**  
- **Low Start-Up Voltage:** Operates down to 0.7V  
- **Internal Power MOSFET:** Simplifies design  
- **Pulse-Frequency Modulation (PFM):** Improves efficiency at light loads  
- **Low Quiescent Current:** 30µA (typical)  
- **Soft-Start:** Reduces inrush current  
- **Overcurrent Protection:** Safeguards the device  

The MAX1823 is commonly used in portable electronics, such as wireless sensors, medical devices, and handheld instruments.

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