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MAX859ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX859ESA

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX859ESA MAXIM, MAX 5032 In Stock

Description and Introduction

3.3V/5V or Adjustable-Output / Step-Up DC-DC Converters The MAX859ESA is a step-up DC-DC converter manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX859ESA  
- **Package:** 8-SOIC  
- **Type:** Step-Up (Boost) DC-DC Converter  
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable (up to 5.5V)  
- **Output Current:** Up to 300mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The MAX859ESA is a high-efficiency, step-up DC-DC converter designed for low-voltage applications. It is optimized for battery-powered devices, providing a regulated output voltage from a single-cell or dual-cell battery input. The device features internal power switches, minimizing external component count.  

### **Features:**  
- **Low Start-Up Voltage:** Operates down to 0.7V input  
- **Adjustable Output Voltage:** Set via external resistors  
- **Internal Power MOSFETs:** Reduces external components  
- **High Efficiency:** Up to 94%  
- **Low Shutdown Current:** <1µA  
- **500kHz Switching Frequency:** Allows small external components  
- **Overcurrent Protection:** Prevents damage during faults  
- **Compact 8-SOIC Package:** Suitable for space-constrained designs  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • LT1307CS8 --: Low-voltage boost converter in an SO-8 package with comparable input range and output current, widely used as a MAX859 substitute.
  • TPS61020DRB --: Boost converter with similar input voltage range and switching frequency, available in small packages and suitable for the same portable applications.
  • NCP1402SN33T1G --: Compact boost regulator with comparable current capability and low quiescent current, a practical alternative when the exact MAX859 is unavailable.
  • LT1372CS8 --: High-efficiency boost converter in SO-8 with comparable input voltage range and switch current, a common drop-in functional substitute for the MAX859 boost regulator.
  • MC34063A --: Widely available general-purpose DC-DC switching regulator that can be configured as a boost converter covering similar voltage and current requirements at lower cost.
  • LM2700MT-ADJ --: Adjustable boost converter with integrated switch and similar operating voltage range, suitable as an alternative boost regulator solution.

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