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MAX849ESE from MAX,MAXIM - Dallas Semiconductor

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MAX849ESE

Manufacturer: MAX

1-Cell to 3-Cell / High-Power / Low-Noise / Step-Up DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX849ESE MAX 4400 In Stock

Description and Introduction

1-Cell to 3-Cell / High-Power / Low-Noise / Step-Up DC-DC Converters The MAX849ESE is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX849ESE  
- **Package:** 16-pin narrow SOIC  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V  
- **Maximum Output Current:** Up to 300mA (depending on input/output conditions)  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Description:**  
The MAX849ESE is a low-power, step-up DC-DC converter designed for applications requiring high efficiency from very low input voltages. It integrates a synchronous rectifier to minimize external components and improve efficiency. The device is optimized for battery-powered and portable electronics, such as medical devices, sensors, and wireless modules.

### **Features:**  
- **Ultra-Low Input Voltage Operation:** Starts up with inputs as low as 0.7V.  
- **Synchronous Rectification:** Improves efficiency and reduces external component count.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Low Quiescent Current:** 25µA (typical) for improved battery life.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Thermal Shutdown Protection:** Safeguards the device from overheating.  
- **Small Footprint:** 16-pin SOIC package for space-constrained applications.  

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

Application Scenarios & Design Considerations

1-Cell to 3-Cell / High-Power / Low-Noise / Step-Up DC-DC Converters

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