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MAX1845ETX from MAXIM,MAXIM - Dallas Semiconductor

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MAX1845ETX

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX1845ETX MAXIM 121 In Stock

Description and Introduction

Dual / High-Efficiency / Step-Down Controller with Accurate Current Limit The **MAX1845ETX** is a DC-DC converter manufactured by **Maxim Integrated (now part of Analog Devices)**. Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Category:** DC-DC Switching Regulator  
- **Output Type:** Adjustable  
- **Topology:** Buck (Step-Down)  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** 0.8V to 5.5V (adjustable)  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 500kHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin TQFN (5mm x 5mm)  

### **Descriptions:**  
The **MAX1845ETX** is a high-efficiency, step-down DC-DC converter designed for applications requiring a compact power solution with high performance. It integrates a synchronous rectifier for improved efficiency and supports a wide input voltage range, making it suitable for industrial, automotive, and battery-powered systems.  

### **Features:**  
- **High Efficiency (up to 95%)** – Reduces power dissipation.  
- **Wide Input Voltage Range (4.5V to 28V)** – Supports various power sources.  
- **Adjustable Output Voltage (0.8V to 5.5V)** – Flexible for different applications.  
- **2A Output Current Capability** – Suitable for moderate power loads.  
- **Fixed 500kHz Switching Frequency** – Minimizes external component size.  
- **Synchronous Rectification** – Improves efficiency compared to diode-based designs.  
- **Thermal Shutdown & Overcurrent Protection** – Enhances reliability.  
- **Small 16-pin TQFN Package** – Space-saving for compact designs.  

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

Application Scenarios & Design Considerations

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

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