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MAX1842 from MAX,MAXIM - Dallas Semiconductor

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MAX1842

Manufacturer: MAX

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

Partnumber Manufacturer Quantity Availability
MAX1842 MAX 73 In Stock

Description and Introduction

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches The MAX1842 is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated. 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%  
- **Quiescent Current:** 40µA (typ)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 8-pin µMAX, 10-pin µMAX  

### **Descriptions:**  
The MAX1842 is a synchronous, step-down DC-DC converter optimized for portable applications requiring high efficiency and compact size. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates in pulse-width modulation (PWM) mode for optimal efficiency across load conditions.  

### **Features:**  
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Low Quiescent Current:** 40µA (typ) for extended battery life.  
- **Fixed-Frequency Operation:** 1MHz switching frequency minimizes external component size.  
- **Internal MOSFETs:** Eliminates the need for external switches.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Short-Circuit Protection:** Enhances reliability.  

This information is based solely on the manufacturer's datasheet. For further details, refer to Maxim Integrated's official documentation.

Application Scenarios & Design Considerations

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

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