MAX1818EUT18-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, Low Quiescent Current
• Package: SOT-23-6
• Essence: Linear Regulator
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage: 1.8V
• Dropout Voltage: 120mV at 100mA
• Quiescent Current: 40µA
• Load Regulation: ±0.05% (typical)
• Line Regulation: ±0.02% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1818EUT18-T has a total of six pins arranged in the following configuration:

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| | --| VOUT GND|-- Pin 1 --| VIN SHDN|-- Pin 2 --| FB NC |-- Pin 3 |___________| ```

Pin 1: VOUT - Output Voltage Pin 2: VIN - Input Voltage Pin 3: SHDN - Shutdown Control Pin 4: FB - Feedback Pin Pin 5: NC - No Connection Pin 6: GND - Ground

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Low quiescent current ensures minimal power consumption during standby or idle states.
• Shutdown control pin enables easy on/off switching of the regulator.
• Feedback pin provides accurate output voltage regulation.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient operation. - Low quiescent current minimizes power consumption. - Shutdown control allows for easy on/off switching. - Accurate output voltage regulation.

Disadvantages: - Limited input voltage range (2.5V to 5.5V). - Output voltage fixed at 1.8V.

Working Principles

The MAX1818EUT18-T is a linear regulator that regulates the output voltage based on the difference between the input and desired output voltage. It achieves this by using a pass transistor to maintain a constant voltage drop across it, resulting in a stable output voltage. The feedback pin monitors the output voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The MAX1818EUT18-T is commonly used in various applications where a stable and regulated 1.8V power supply is required. Some typical application fields include:

1. Battery-Powered Devices: Portable electronic devices such as smartphones, tablets, and wearable devices often require a low dropout voltage regulator to efficiently regulate the battery voltage to power the internal circuitry.

2. Industrial Control Systems: The MAX1818EUT18-T can be used in industrial control systems to provide a stable and reliable power source for microcontrollers, sensors, and other components.

3. Automotive Electronics: In automotive applications, the regulator can be utilized to power various electronic modules, such as infotainment systems, navigation units, and dashboard displays.

4. IoT Devices: Internet of Things (IoT) devices often operate on low voltages and require efficient voltage regulation. The MAX1818EUT18-T can be employed in IoT devices like smart home devices, environmental sensors, and wireless communication modules.

Detailed and Complete Alternative Models

1. MAX1818EUT18+: Similar to MAX1818EUT18-T, but with an extended operating temperature range (-40°C to +125°C).

2. MAX1818EUT18-3.3: Provides a regulated output voltage of 3.3V instead of 1.8V.

3. MAX1818EUT18-ADJ: Adjustable output voltage version, allowing for user-defined output voltages within a specified range.

4. MAX1818EUT18-XX: Various other fixed output voltage options available, such as 2.5V, 3.0V, 2.8V, etc.

Note: The above alternative models are just a few examples, and there may be additional variations available in the MAX1818EUT18 series.

In conclusion, the MAX1818EUT18-T is a low dropout linear regulator that provides efficient voltage regulation with low quiescent current. It is commonly used in various applications where a stable and regulated 1.8V power supply is required.