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MAX1856EUB+T from MAX,MAXIM - Dallas Semiconductor

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MAX1856EUB+T

Manufacturer: MAX

Wide-Input-Range, Synchronizable, PWM SLIC Power Supply

Partnumber Manufacturer Quantity Availability
MAX1856EUB+T,MAX1856EUBT MAX 1585 In Stock

Description and Introduction

Wide-Input-Range, Synchronizable, PWM SLIC Power Supply The MAX1856EUB+T is a step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices).  

### **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 MAX1856EUB+T is a high-efficiency, step-down DC-DC converter designed for portable applications requiring low power consumption. It integrates synchronous rectification for improved efficiency and includes internal power switches to minimize external components.  

### **Features:**  
- **Low Quiescent Current:** 30µA (typ)  
- **Pulse-Width Modulation (PWM) Operation**  
- **Internal Soft-Start**  
- **Overcurrent and Thermal Protection**  
- **Small Footprint with Minimal External Components**  
- **Synchronous Rectification for High Efficiency**  

This device is commonly used in battery-powered applications such as smartphones, PDAs, and portable media players.

Application Scenarios & Design Considerations

Wide-Input-Range, Synchronizable, PWM SLIC Power Supply

Alternative Part Number

  • LT1945EMS#PBF --: Dual-channel step-up/step-down DC-DC converter in MSOP-10, similar function and package to the MAX1856, from a different series and vendor.
  • TPS61085DGKR --: High-voltage boost converter in MSOP-8 with comparable input/output range, a common cross for MAX1856 designs.
  • MC34063ADR2G --: Widely available general-purpose DC-DC switching regulator usable as a functional substitute when exact specs are not critical.

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