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MAX1879EUA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1879EUA+

Manufacturer: MAXIM

Simple, Efficient, 1-Cell Li+ Pulse Charger

Partnumber Manufacturer Quantity Availability
MAX1879EUA+,MAX1879EUA MAXIM 250 In Stock

Description and Introduction

Simple, Efficient, 1-Cell Li+ Pulse Charger The MAX1879EUA+ is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated.  

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to 300mA (dependent on input voltage)  
- **Switching Frequency:** 500kHz (typical)  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin μMAX  

### **Descriptions:**  
The MAX1879EUA+ is designed for low-input-voltage applications, such as single-cell or dual-cell alkaline/NiMH battery-powered devices. It integrates a synchronous rectifier for improved efficiency and includes a low-battery detector.  

### **Features:**  
- True **0.7V Start-Up Voltage**  
- **Synchronous Rectification** for high efficiency  
- **Adjustable Output Voltage** via external resistors  
- **Low-Battery Detector** with adjustable threshold  
- **Low Quiescent Current:** 20μA (typical) in shutdown mode  
- **Overcurrent and Thermal Protection**  
- **Small Footprint** (8-pin μMAX package)  

This IC is commonly used in portable electronics, medical devices, and energy-harvesting applications.

Application Scenarios & Design Considerations

Simple, Efficient, 1-Cell Li+ Pulse Charger
Partnumber Manufacturer Quantity Availability
MAX1879EUA+,MAX1879EUA MAXIM/DALLAS 50 In Stock

Description and Introduction

Simple, Efficient, 1-Cell Li+ Pulse Charger The MAX1879EUA+ is a step-up DC-DC converter manufactured by **MAXIM/DALLAS**.  

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2.5V to 5.5V  
- **Output Current:** Up to 300mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin μMAX (UA)  

### **Descriptions:**  
The MAX1879EUA+ is a high-efficiency, step-up DC-DC converter designed for low-input-voltage applications. It integrates a synchronous rectifier to improve efficiency and reduce external component count. It is suitable for battery-powered devices, portable electronics, and energy harvesting systems.  

### **Features:**  
- **True Low-Voltage Operation:** Starts up with inputs as low as 0.7V  
- **Synchronous Rectification:** Improves efficiency and reduces external diode requirements  
- **Adjustable Output Voltage:** Set via external resistor divider  
- **Low Quiescent Current:** 30μA (typical)  
- **Overcurrent and Thermal Protection:** Enhances reliability  
- **Small Footprint:** 8-pin μMAX package saves board space  

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

Application Scenarios & Design Considerations

Simple, Efficient, 1-Cell Li+ Pulse Charger

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