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MAX1698AEUB+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1698AEUB+

Manufacturer: MAXIM

High-Efficiency Step-Up Current Regulator for LEDs

Partnumber Manufacturer Quantity Availability
MAX1698AEUB+,MAX1698AEUB MAXIM 1600 In Stock

Description and Introduction

High-Efficiency Step-Up Current Regulator for LEDs The MAX1698AEUB+ is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-pin µMAX (3mm x 5mm)  

### **Descriptions:**  
The MAX1698AEUB+ is a synchronous step-down DC-DC converter optimized for high efficiency and compact designs. It integrates both high-side and low-side MOSFETs, reducing external component count. The device operates at a fixed 1MHz switching frequency, allowing the use of small inductors and capacitors.  

### **Features:**  
- **Integrated Power MOSFETs** (synchronous rectification)  
- **Adjustable Output Voltage** (via external resistors)  
- **Low Dropout Operation** (100% duty cycle)  
- **Soft-Start Function** (reduces inrush current)  
- **Overcurrent and Thermal Protection**  
- **Low Quiescent Current** (40µA in shutdown mode)  
- **Synchronizable Switching Frequency**  

This device is commonly used in automotive, industrial, and portable applications requiring efficient power conversion.

Application Scenarios & Design Considerations

High-Efficiency Step-Up Current Regulator for LEDs

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