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MAX1873SEEE from MAX,MAXIM - Dallas Semiconductor

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MAX1873SEEE

Manufacturer: MAX

Simple Current-Limited Switch-Mode Li Charger Controller

Partnumber Manufacturer Quantity Availability
MAX1873SEEE MAX 15 In Stock

Description and Introduction

Simple Current-Limited Switch-Mode Li Charger Controller The MAX1873SEEE 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:

### **Manufacturer:**  
- **MAX** (Maxim Integrated, now Analog Devices)  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 23V  
- **Output Voltage Range:** Adjustable from 1.25V to 18V  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin QSOP (QSOP-16)  

### **Descriptions:**  
- The MAX1873SEEE is a synchronous step-down DC-DC converter with integrated power MOSFETs.  
- It provides high efficiency and low dropout operation, making it suitable for battery-powered and industrial applications.  
- Features include pulse-width modulation (PWM) control, soft-start, and overcurrent/thermal protection.  

### **Features:**  
- **Integrated Power MOSFETs** (No external FETs required)  
- **Adjustable Output Voltage** (via external resistors)  
- **High Efficiency** (Up to 95%)  
- **500kHz Switching Frequency** (Reduces inductor size)  
- **Soft-Start Function** (Prevents inrush current)  
- **Overcurrent and Thermal Protection**  
- **Low Dropout Operation**  
- **Wide Input Voltage Range (4.5V–23V)**  

This device is commonly used in applications such as industrial power supplies, networking equipment, and portable electronics.  

Would you like any additional details?

Application Scenarios & Design Considerations

Simple Current-Limited Switch-Mode Li Charger Controller

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