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MAX8545EUB+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX8545EUB+T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX8545EUB+T MAXIM 6000 In Stock

Description and Introduction

Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit The MAX8545EUB+T is a step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.5V 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+T is a high-efficiency, synchronous step-down DC-DC converter designed for portable applications.  
- It integrates both high-side and low-side MOSFETs, reducing external component count.  
- Features pulse-width modulation (PWM) operation for optimal efficiency across load conditions.  

### **Features:**
- **Integrated Power MOSFETs** – Eliminates the need for external switches.  
- **Low Dropout Operation** – Allows 100% duty cycle for extended battery life.  
- **Soft-Start Function** – Reduces inrush current during startup.  
- **Overcurrent and Thermal Protection** – Enhances system reliability.  
- **Low Quiescent Current** – 40µA (typ) in shutdown mode.  
- **Adjustable Output Voltage** – Set via external resistors.  

This device is commonly used in battery-powered devices, PDAs, and portable electronics.  

(Data sourced from Maxim Integrated's official documentation.)

Application Scenarios & Design Considerations

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

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