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MAX1806EUA18 from MAXIM,MAXIM - Dallas Semiconductor

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MAX1806EUA18

Manufacturer: MAXIM, MAX

500mA, Low-Voltage Linear Regulator in UMAX
Partnumber Manufacturer Quantity Availability
MAX1806EUA18 MAXIM, MAX 5801 In Stock

Description and Introduction

500mA, Low-Voltage Linear Regulator in UMAX The MAX1806EUA18 is a high-efficiency, step-down DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 28V  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** Up to 6A  
- **Switching Frequency:** 300kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin µMAX® (3mm x 3mm)  

### **Descriptions:**  
The MAX1806EUA18 is a synchronous buck (step-down) DC-DC converter designed for high-efficiency power conversion in applications requiring a regulated 1.8V output. It integrates both high-side and low-side MOSFETs, reducing external component count and board space. The device operates over a wide input voltage range, making it suitable for industrial, automotive, and telecom applications.  

### **Features:**  
- **Integrated Power MOSFETs:** Reduces external component requirements.  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Wide Input Voltage Range:** Supports 4.5V to 28V input.  
- **Fixed Output Voltage:** 1.8V preset output.  
- **Current-Mode Control:** Provides fast transient response and stable operation.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Enhances system reliability.  
- **Low Dropout Operation:** Maintains regulation even when input voltage approaches output voltage.  

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

Application Scenarios & Design Considerations

500mA, Low-Voltage Linear Regulator in UMAX

Alternative Part Number

  • TPS62110 --: Step-down DC-DC converter with similar input voltage range and adjustable output, widely available and pin-compatible in function.
  • LTC3406 --: High-efficiency synchronous buck converter in a similar small package, suitable replacement for low-voltage step-down applications.
  • AP3402 --: Compact 2A synchronous buck converter offering comparable performance and a different naming series for easy distinction.
  • LM2596S-ADJ --: Adjustable buck regulator capable of the same output current class, robust and easy to source as a functional replacement.
  • MP1584EN --: Compact high-efficiency buck converter with comparable voltage and current ratings, suitable for similar 1.8V rail applications.
  • LM3671MF-1.8 --: Fixed 1.8V output buck converter in small package, low quiescent current, suitable drop-in functional replacement for low-current 1.8V supplies.
  • AP3418KTR-G1 --: 1.8V fixed-output synchronous buck converter with comparable current capability and compact footprint, cost-effective alternative.

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