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MAX5070AAUA from MAXIM,MAXIM - Dallas Semiconductor

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MAX5070AAUA

Manufacturer: MAXIM, MAX

5 V, high-performance, single-ended, current-mode PWM controller

Partnumber Manufacturer Quantity Availability
MAX5070AAUA MAXIM, MAX 108 In Stock

Description and Introduction

5 V, high-performance, single-ended, current-mode PWM controller The MAX5070AAUA is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 23V  
- **Output Voltage Range:** Adjustable from 0.8V to 90% of VIN  
- **Output Current:** Up to 10A  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin μMAX (3mm x 5mm)  

### **Descriptions:**
- The MAX5070AAUA is a synchronous buck (step-down) DC-DC converter designed for high-power applications.  
- It integrates high-side and low-side MOSFETs, reducing external component count.  
- Features include adjustable soft-start, overcurrent protection, and thermal shutdown.  
- Suitable for telecom, industrial, and computing power supplies.  

### **Features:**
- **Integrated Power MOSFETs:** Reduces external components.  
- **Adjustable Frequency:** 300kHz to 1MHz for efficiency optimization.  
- **Programmable Soft-Start:** Prevents inrush current.  
- **Overcurrent & Thermal Protection:** Enhances reliability.  
- **External Synchronization:** Allows frequency locking to an external clock.  
- **Low Dropout Operation:** Maintains regulation even when input voltage is close to output.  

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

Application Scenarios & Design Considerations

5 V, high-performance, single-ended, current-mode PWM controller

Alternative Part Number

  • LM5020MM-1 --: Current-mode PWM controller in an MSOP-8 package with similar supply range and gate drive, a common drop-in style replacement for the MAX5070 family.
  • UCC2803D --: Low-power current-mode PWM controller in SOIC-8 offering comparable oscillator and drive capability, widely available and well documented.
  • NCP1200P60 --: Integrated current-mode PWM controller with built-in high-voltage startup, suitable for similar offline flyback designs when layout is adjusted.
  • LM3478MM --: Low-side N-channel MOSFET controller in an MSOP-8 package, functionally similar boost/flyback controller with wide input range and easy second-source availability.
  • UC3843BD1 --: Industry-standard current-mode PWM controller in SO-8, widely available and commonly used as a drop-in style replacement for general-purpose switching controller designs.

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