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MAX1858AEEG from MAXIM,MAXIM - Dallas Semiconductor

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MAX1858AEEG

Manufacturer: MAXIM

Dual 180 Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR

Partnumber Manufacturer Quantity Availability
MAX1858AEEG MAXIM 98 In Stock

Description and Introduction

Dual 180 Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR The MAX1858AEEG is a step-down DC-DC converter from Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable from 0.8V to 90% of VIN  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 300kHz (adjustable up to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-pin QSOP  

### **Descriptions:**  
- The MAX1858AEEG is a synchronous buck (step-down) DC-DC converter optimized for high-efficiency power conversion.  
- It integrates both high-side and low-side MOSFETs for compact designs.  
- Features include soft-start, overcurrent protection, and thermal shutdown.  

### **Features:**  
- **Integrated Power MOSFETs** – Reduces external component count.  
- **Adjustable Output Voltage** – Set via external resistors.  
- **PWM/PFM Mode Operation** – Improves efficiency at light loads.  
- **Soft-Start** – Limits inrush current during startup.  
- **Overcurrent and Thermal Protection** – Enhances system reliability.  
- **External Synchronization** – Allows frequency synchronization to an external clock.  

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

Application Scenarios & Design Considerations

Dual 180 Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR

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