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MAX858ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX858ESA

Manufacturer: MAXIM

3.3V/5V or Adjustable-Output / Step-Up DC-DC Converters

Partnumber Manufacturer Quantity Availability
MAX858ESA MAXIM 10 In Stock

Description and Introduction

3.3V/5V or Adjustable-Output / Step-Up DC-DC Converters The MAX858ESA is a low-power, step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage Range:** Up to 5.5V (adjustable)  
- **Output Current:** Up to 300mA (depending on input voltage)  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (MAX858ESA)  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX858ESA is a compact, high-efficiency step-up DC-DC converter designed for low-voltage applications. It integrates a power switch and can operate from input voltages as low as 0.7V, making it suitable for battery-powered devices.  

### **Features:**  
- Low start-up voltage (0.7V)  
- Internal power MOSFET switch  
- Adjustable or fixed output voltage options  
- Low quiescent current (40µA typical)  
- Soft-start feature to limit inrush current  
- Thermal shutdown protection  
- Small footprint (SOIC-8 package)  

The device is commonly used in portable electronics, battery-powered systems, and energy-harvesting applications.

Application Scenarios & Design Considerations

3.3V/5V or Adjustable-Output / Step-Up DC-DC Converters

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