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MAX668EUB from MAX,MAXIM - Dallas Semiconductor

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MAX668EUB

Manufacturer: MAX, MAXIM, MAXIM

1.8V to 28V Input / PWM Step-Up Controllers in MAX

Partnumber Manufacturer Quantity Availability
MAX668EUB MAX, MAXIM, MAXIM 2850 In Stock

Description and Introduction

1.8V to 28V Input / PWM Step-Up Controllers in MAX The MAX668EUB is a step-up DC-DC converter from Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Manufacturer:** Maxim Integrated (Analog Devices)  

### **Specifications:**  
- **Input Voltage Range:** 0.8V to 28V  
- **Output Voltage Range:** Adjustable up to 28V  
- **Switching Frequency:** 500kHz (fixed)  
- **Maximum Output Current:** Dependent on input voltage and external components  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin µMAX (ultra-small form factor)  

### **Descriptions:**  
- The MAX668EUB is a high-efficiency, low-power, step-up DC-DC converter.  
- It is designed for battery-powered applications requiring a regulated output voltage higher than the input supply.  
- Uses a current-limited, pulse-width modulation (PWM) controller with an external N-channel MOSFET.  

### **Features:**  
- **Wide Input Voltage Range:** Operates from voltages as low as 0.8V, suitable for single-cell battery applications.  
- **Adjustable Output Voltage:** Set via an external resistor divider.  
- **Low Quiescent Current:** 110µA (typical) for improved efficiency in battery-powered systems.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overvoltage Protection:** Prevents excessive output voltage.  
- **Small Footprint:** 10-pin µMAX package for space-constrained designs.  

This information is strictly factual from the manufacturer's datasheet. Let me know if you need further details.

Application Scenarios & Design Considerations

1.8V to 28V Input / PWM Step-Up Controllers in MAX

Alternative Part Number

  • LT1945EMS --: Dual boost/inverting DC-DC converter in MSOP-10 that can serve as a functional substitute for the MAX668EUB in many low-power boost applications.
  • TPS61085DGKR --: High-frequency boost converter in a small package with comparable input/output voltage range and current capability, suitable as a drop-in functional alternative.
  • MC34063ADR2G --: Widely available general-purpose DC-DC switching regulator that can be configured for boost operation, offering a low-cost fallback option with different pinout requiring layout changes.

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