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MAX1821EUB+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX1821EUB+T

Manufacturer: MAXIM

WCDMA Cellular Phone 600mA Buck Regulators

Partnumber Manufacturer Quantity Availability
MAX1821EUB+T,MAX1821EUBT MAXIM 968 In Stock

Description and Introduction

WCDMA Cellular Phone 600mA Buck Regulators The MAX1821EUB+T is a step-down DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.6V 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%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX® (3mm x 5mm)  

### **Descriptions:**  
The MAX1821EUB+T is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications. It integrates synchronous rectification for improved efficiency and features a fixed-frequency PWM operation for low noise.  

### **Features:**  
- **High Efficiency:** Up to 95% due to synchronous rectification.  
- **Low Quiescent Current:** 40µA (typical) in shutdown mode.  
- **Pulse-Width Modulation (PWM) Operation:** Ensures stable performance.  
- **Internal Soft-Start:** Reduces inrush current.  
- **Overcurrent and Thermal Protection:** Enhances reliability.  
- **Small Footprint:** 10-pin µMAX package saves board space.  

This information is sourced from Maxim Integrated's official documentation.

Application Scenarios & Design Considerations

WCDMA Cellular Phone 600mA Buck Regulators

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