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MAX859CSA from MAXIM,MAXIM - Dallas Semiconductor

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MAX859CSA

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX859CSA MAXIM, MAX 16985 In Stock

Description and Introduction

3.3V/5V or Adjustable-Output / Step-Up DC-DC Converters The MAX859CSA is a step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual details about the device:

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

### **Specifications**:  
- **Input Voltage Range**: 0.7V to 5.5V  
- **Output Voltage**: Adjustable from 2V to 5.5V  
- **Output Current**: Up to 300mA (depending on input voltage)  
- **Switching Frequency**: 500kHz (typical)  
- **Efficiency**: Up to 94%  
- **Operating Temperature Range**: -40°C to +85°C  
- **Package**: 8-pin SOIC  

### **Descriptions**:  
- The MAX859CSA is a low-power, step-up DC-DC converter optimized for battery-powered applications.  
- It features a low start-up voltage (0.7V) and can operate from a single-cell battery.  
- The device includes internal power switches, reducing external component count.  

### **Features**:  
- Low input voltage operation (0.7V)  
- Adjustable output voltage (2V to 5.5V)  
- Internal 0.5A power switch  
- Low quiescent current (20µA typical)  
- Soft-start function to limit inrush current  
- Thermal shutdown protection  
- Small 8-pin SOIC package  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • LT1302CS8 --: Low-voltage boost DC-DC converter in an 8-pin SOIC package with comparable input range and switching current, suitable as a functional replacement for the MAX859 boost regulator.
  • TPS61020DRB --: Boost converter with integrated switch and similar input voltage range, offering a pin-compatible alternative in a small package for low-power step-up applications.
  • MC34063ACD --: Widely available general-purpose DC-DC switching regulator that can be configured as a boost converter, providing a cost-effective fallback with flexible design options.
  • LT1372CS8 --: High-efficiency boost converter in SO-8 with comparable input voltage range and switching current, a common cross for the MAX859 boost regulator.
  • LM2577S-ADJ --: Adjustable step-up switching regulator in a similar package with adequate current capability, suitable as a functional substitute for boost applications.

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