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MAX8546EUB+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX8546EUB+

Manufacturer: MAXIM

Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit

Partnumber Manufacturer Quantity Availability
MAX8546EUB+,MAX8546EUB MAXIM 200 In Stock

Description and Introduction

Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit The MAX8546EUB+ 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 Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 2.6V to 5.5V  
- **Output Voltage Range:** Adjustable from 0.8V to VIN  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX (3mm x 5mm)  

### **Descriptions:**  
The MAX8546EUB+ is a synchronous step-down DC-DC converter designed for high-efficiency power conversion in portable and battery-powered applications. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1MHz switching frequency, allowing for small external components and compact PCB designs.  

### **Features:**  
- **Integrated Synchronous Rectifier:** Improves efficiency and eliminates the need for an external Schottky diode.  
- **PWM/PFM Mode Operation:** Automatically switches between modes for optimal efficiency across load conditions.  
- **Low Dropout Operation:** Allows the output to remain in regulation even when the input voltage approaches the output voltage.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection:** Safeguards the device under fault conditions.  
- **Low Quiescent Current:** 40µA (typical) in PFM mode for improved light-load efficiency.  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit

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