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MAX1843ETI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1843ETI+

Manufacturer: MAXIM

2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in TQFN Package

Partnumber Manufacturer Quantity Availability
MAX1843ETI+,MAX1843ETI MAXIM 230 In Stock

Description and Introduction

2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in TQFN Package The MAX1843ETI+ is a step-down 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  
- **Part Number:** MAX1843ETI+  
- **Package:** 28-TQFN (5x5mm)  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable (0.8V to 5.5V)  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 500kHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The MAX1843ETI+ is a **high-efficiency, synchronous step-down DC-DC converter** designed for applications requiring high current with tight voltage regulation. It integrates **low RDS(ON) MOSFETs** to minimize power loss and supports a wide input voltage range, making it suitable for industrial, automotive, and telecom applications.  

### **Features:**  
- **Integrated Power MOSFETs** (synchronous rectification)  
- **Adjustable Output Voltage** (0.8V to 5.5V)  
- **High Efficiency (up to 95%)**  
- **500kHz Switching Frequency** (adjustable for noise-sensitive applications)  
- **Overcurrent and Thermal Protection**  
- **Soft-Start Function** (reduces inrush current)  
- **Low Quiescent Current (40µA in shutdown mode)**  
- **Wide Input Voltage Range (4.5V to 28V)**  

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

Application Scenarios & Design Considerations

2.7A, 1MHz, Low-Voltage, Step-Down Regulator with Internal Synchronous Rectification in TQFN Package

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