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MAX1818EUT18 from MAX,MAXIM - Dallas Semiconductor

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MAX1818EUT18

Manufacturer: MAX

500mA Low-Dropout Linear Regulator in SOT23

Partnumber Manufacturer Quantity Availability
MAX1818EUT18 MAX 15 In Stock

Description and Introduction

500mA Low-Dropout Linear Regulator in SOT23 The MAX1818EUT18 is a low-dropout linear regulator (LDO) manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage:** 1.8V (fixed)  
- **Output Current:** Up to 200mA  
- **Dropout Voltage:** 120mV (typical) at 200mA  
- **Quiescent Current:** 50µA (typical)  
- **Accuracy:** ±2% over line, load, and temperature  
- **Package:** SOT23-6  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- **Low Dropout Voltage:** Ensures efficient regulation even with small input-output differentials.  
- **Low Quiescent Current:** Ideal for battery-powered applications.  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥1µF).  
- **Thermal and Short-Circuit Protection:** Enhances reliability under fault conditions.  
- **Fixed Output Voltage:** No external resistors needed for voltage setting.  
- **Fast Transient Response:** Maintains stable output under load changes.  

This LDO is commonly used in portable electronics, battery-powered devices, and noise-sensitive applications.

Application Scenarios & Design Considerations

500mA Low-Dropout Linear Regulator in SOT23

Alternative Part Number

  • LP2985AIM5-1.8 --: Low-dropout linear regulator with fixed 1.8V output in SOT-23-5, functionally equivalent to the MAX1818EUT18 with similar current capability and pinout.
  • MIC5205-1.8YM5 --: 1.8V fixed LDO regulator in SOT-23-5 package, comparable dropout and load current, suitable drop-in replacement for the MAX1818EUT18.
  • AP2112K-1.8TRG1 --: 1.8V fixed LDO in SOT-23-5 with low quiescent current and good availability, a practical alternative to the MAX1818EUT18.

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