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MAX8545EUB from MAXIM,MAXIM - Dallas Semiconductor

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MAX8545EUB

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX8545EUB MAXIM 2500 In Stock

Description and Introduction

Low-Cost / Wide Input Range / Step-Down Controllers with Foldback Current Limit The MAX8545EUB 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:** 2.7V 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 3mm)  

### **Descriptions:**  
The MAX8545EUB is a high-efficiency, synchronous step-down DC-DC converter designed for 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 layouts.  

### **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 at light and heavy loads.  
- **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.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation when the input voltage is below the minimum threshold.  
- **Thermal Shutdown:** Protects the device from overheating.  

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

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