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MAX5020CSA+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX5020CSA+

Manufacturer: MAXIM

Current-Mode PWM Controllers with Integrated Startup Circuit

Partnumber Manufacturer Quantity Availability
MAX5020CSA+,MAX5020CSA MAXIM 320 In Stock

Description and Introduction

Current-Mode PWM Controllers with Integrated Startup Circuit The MAX5020CSA+ 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  
- **Part Number:** MAX5020CSA+  
- **Package:** 8-SOIC (150mil)  
- **Type:** Step-Up (Boost) DC-DC Converter  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable (up to 28V)  
- **Output Current:** Up to 100mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** 0°C to +70°C  
- **Shutdown Current:** 1µA (typical)  

### **Descriptions:**  
The MAX5020CSA+ is a compact, high-efficiency, step-up DC-DC converter designed for low-power applications. It integrates a power MOSFET and a synchronous rectifier, minimizing external component count. The device operates from a single-cell Li-ion battery or other low-voltage sources and provides a regulated output voltage up to 28V.  

### **Features:**  
- **Integrated Power MOSFET and Diode** (reduces external components)  
- **Adjustable Output Voltage** (via external resistors)  
- **Low Shutdown Current** (1µA typical)  
- **High Switching Frequency** (500kHz, allows small external components)  
- **Internal Soft-Start** (prevents inrush current)  
- **Thermal Shutdown Protection**  
- **Compact SOIC Package** (suitable for space-constrained designs)  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Current-Mode PWM Controllers with Integrated Startup Circuit

Alternative Part Number

  • UC3843BD1R2G --: Industry-standard current-mode PWM controller in an 8-pin SOIC package, functionally similar to the MAX5020 boost/current-mode controller and widely available as a lower-cost second source.
  • LM5020MM-1/NOPB --: Current-mode PWM controller with comparable operating voltage and drive capability, offered in a small MSOP package; a close functional substitute for boost/flyback designs.
  • NCP1252ADR2G --: Current-mode PWM controller with integrated features for offline converters, suitable as an alternative where the MAX5020 is used in boost or flyback topologies.

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