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MAX5020ESA from MAX,MAXIM - Dallas Semiconductor

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MAX5020ESA

Manufacturer: MAX, MAXIM, MAXIM

Current-Mode PWM Controllers with Integrated Startup Circuit
Partnumber Manufacturer Quantity Availability
MAX5020ESA MAX, MAXIM, MAXIM 687 In Stock

Description and Introduction

Current-Mode PWM Controllers with Integrated Startup Circuit The MAX5020ESA is a high-efficiency, step-up DC-DC converter manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Model:** MAX5020ESA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** Adjustable up to 30V  
- **Output Current:** Up to 100mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Shutdown Current:** 1µA (typical)  

### **Descriptions:**  
The MAX5020ESA is a compact, high-efficiency, step-up DC-DC converter designed for low-power applications requiring high output voltages. It integrates a power MOSFET switch and operates at a fixed 500kHz switching frequency, minimizing external component size. The device is suitable for battery-powered systems, LCD bias supplies, and other applications needing a regulated high voltage from a low input source.  

### **Features:**  
- **Wide Input Voltage Range (2.5V–5.5V)** – Supports battery-powered applications.  
- **Adjustable Output Voltage (Up to 30V)** – Set via an external resistor divider.  
- **High Efficiency (Up to 90%)** – Optimized for power-sensitive designs.  
- **Low Shutdown Current (1µA)** – Extends battery life.  
- **Internal Power MOSFET** – Reduces external component count.  
- **Fixed 500kHz Switching Frequency** – Allows small external components.  
- **Thermal Overload Protection** – Safeguards against excessive heat.  
- **Current-Limiting and Short-Circuit Protection** – Enhances reliability.  

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

Application Scenarios & Design Considerations

Current-Mode PWM Controllers with Integrated Startup Circuit

Alternative Part Number

  • LM5000SD-3/NOPB --: High-voltage boost/flyback controller with integrated switch, functionally similar to MAX5020 and widely available.
  • LT1932ES6#TRPBF --: Constant-current boost converter in a small package, suitable as a drop-in functional substitute for LED/boost applications.
  • MC34063ADR2G --: Versatile general-purpose DC-DC switching regulator that can be configured for boost or flyback topologies, low cost and broadly stocked.
  • UC3843BD1 --: Industry-standard current-mode PWM controller in SO-8, functionally similar to the MAX5020 boost/SEPIC controller and widely available as a lower-cost second source.
  • LM3478MM --: Low-side N-channel MOSFET boost/SEPIC controller in MSOP-8 with comparable input range and switching frequency, suitable for similar DC-DC converter designs.
  • NCP3063DR2G --: Versatile boost/buck/inverting switching regulator in SO-8 that can replace the MAX5020 in many step-up applications with minimal redesign.
  • LM5020MM-1 --: Current-mode PWM controller with very similar control architecture and voltage range, suitable as a direct functional substitute for boost/flyback designs.
  • NCP1200P60 --: Current-mode PWM controller offering comparable switching control functionality for low-power converter designs, usable as a cross-reference alternative with minor circuit adjustment.

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