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MAX668EUB+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX668EUB+T

Manufacturer: MAXIM

1.8V to 28V Input, PWM Step-Up Controllers in µMAX

Partnumber Manufacturer Quantity Availability
MAX668EUB+T,MAX668EUBT MAXIM 70357 In Stock

Description and Introduction

1.8V to 28V Input, PWM Step-Up Controllers in µMAX The **MAX668EUB+T** is a step-up DC-DC controller manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 1.8V to 28V  
- **Output Voltage Range:** Up to 28V (adjustable via external components)  
- **Switching Frequency:** 100kHz to 500kHz (adjustable)  
- **Maximum Output Current:** Dependent on external components  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX (3mm x 5mm)  

### **Descriptions:**
- The **MAX668EUB+T** is a **boost (step-up) DC-DC controller** designed for applications requiring high efficiency and flexibility.  
- It uses **PWM (Pulse-Width Modulation)** for regulation and supports both synchronous and asynchronous rectification.  
- The device includes an **integrated N-channel MOSFET driver**, reducing external component count.  
- It is suitable for battery-powered systems, portable devices, and industrial applications.  

### **Features:**
- **Adjustable Output Voltage** (via external feedback resistors)  
- **Low Dropout Operation** for improved efficiency  
- **Soft-Start Function** to limit inrush current  
- **External Synchronization Capability**  
- **Overcurrent Protection**  
- **Low Quiescent Current** (typically 110µA)  
- **Thermal Shutdown Protection**  

This IC is commonly used in power supplies, LED drivers, and battery-powered systems requiring step-up voltage conversion.  

*(Source: Maxim Integrated datasheet for MAX668EUB+T.)*

Application Scenarios & Design Considerations

1.8V to 28V Input, PWM Step-Up Controllers in µMAX

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