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MAX1806EUA25 from MAX,MAXIM - Dallas Semiconductor

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MAX1806EUA25

Manufacturer: MAX, MAXIM

500mA, Low-Voltage Linear Regulator in UMAX

Partnumber Manufacturer Quantity Availability
MAX1806EUA25 MAX, MAXIM 526 In Stock

Description and Introduction

500mA, Low-Voltage Linear Regulator in UMAX The MAX1806EUA25 is a 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:** 4V to 30V  
- **Output Voltage:** Fixed 2.5V  
- **Output Current:** Up to 600mA  
- **Switching Frequency:** 500kHz  
- **Efficiency:** Up to 95%  
- **Package:** 8-pin µMAX (UA)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The MAX1806EUA25 is a high-efficiency, step-down DC-DC converter designed for applications requiring a stable 2.5V output from a wide input voltage range.  
- It integrates a synchronous rectifier for improved efficiency and reduced external component count.  
- Suitable for battery-powered and industrial applications.  

### **Features:**
- **Wide Input Voltage Range (4V–30V)** – Supports various power sources.  
- **Fixed 2.5V Output** – No external feedback resistors needed.  
- **High Efficiency (Up to 95%)** – Reduces power loss.  
- **Internal Synchronous Rectifier** – Eliminates the need for an external Schottky diode.  
- **Low Dropout Operation** – Maintains regulation even when input voltage is close to output.  
- **500kHz Switching Frequency** – Allows for small external components.  
- **Thermal Overload Protection** – Safeguards against excessive heat.  
- **Short-Circuit Protection** – Enhances reliability.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

500mA, Low-Voltage Linear Regulator in UMAX

Alternative Part Number

  • TPS62125DSG --: Step-down converter with similar input voltage range and compact package, suitable replacement for low-current buck regulation.
  • LTC3406ES5 --: High-efficiency synchronous buck regulator in a small package, comparable to the MAX1806 family for portable applications.
  • AP3211KTR-G1 --: Low-voltage step-down converter with similar current capability and pin-compatible footprint options.
  • TPS73625DCQ --: Low-dropout linear regulator with fixed 2.5V output and similar current capability, pin-compatible in many designs and widely available.
  • LP2985AIM5-2.5 --: 2.5V fixed-output LDO in a small package, good drop-in for low-power 2.5V regulation with comparable electrical characteristics.
  • ADP151AUJZ-2.5 --: Ultra-low-noise 2.5V LDO regulator offering similar functionality and a compact package, suitable as a functional replacement.

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