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MAX1845ETX+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1845ETX+T

Manufacturer: MAXIM

Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit

Partnumber Manufacturer Quantity Availability
MAX1845ETX+T MAXIM 8 In Stock

Description and Introduction

Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit The MAX1845ETX+T is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.6V 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:** 16-pin TQFN (3mm x 3mm)  

### **Descriptions:**  
- The MAX1845ETX+T is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications.  
- It integrates synchronous rectification for improved efficiency and includes an internal compensation network to simplify design.  
- The device operates in pulse-width modulation (PWM) mode for stable output under varying load conditions.  

### **Features:**  
- **Low Dropout Operation:** Maintains regulation even when the input voltage is close to the output voltage.  
- **Internal Synchronous Rectifier:** Eliminates the need for an external Schottky diode.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Power-Good Output:** Monitors the output voltage status.  
- **Low Quiescent Current:** 30µA (typical) in shutdown mode.  
- **Thermal Overload Protection:** Safeguards the device from overheating.  

This information is sourced from the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

Dual, High-Efficiency, Step-Down Controller with Accurate Current Limit

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