MAX1792EUA18/V+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Efficiency
• Package: SOT23-8
• Essence: Regulates voltage with minimal power loss
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 1.8V
• Maximum Output Current: 500mA
• Dropout Voltage: 120mV at 500mA
• Quiescent Current: 40µA
• Line Regulation: ±0.03%/V
• Load Regulation: ±0.05%/mA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1792EUA18/V+T has the following pin configuration:

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| | --| VOUT | --| GND | --| FB | --| EN | --| VIN | --| BYPASS | --| SHDN | |___________| ```

Functional Features

1. Low dropout voltage ensures efficient regulation even with low input voltages.
2. High output current capability of 500mA allows for powering a wide range of devices.
3. Excellent line and load regulation provide stable output voltage under varying conditions.
4. Shutdown mode (SHDN) enables easy power management and extends battery life.
5. Bypass mode (BYPASS) allows direct connection of the output to the input for maximum efficiency.

Advantages and Disadvantages

Advantages: - Low dropout voltage minimizes power loss. - High output current capability suits various applications. - Small package size (SOT23-8) enables space-saving designs. - Excellent line and load regulation ensure stable voltage output.

Disadvantages: - Limited input voltage range (2.5V to 6.5V). - Maximum output current of 500mA may not be sufficient for high-power applications.

Working Principles

The MAX1792EUA18/V+T is a voltage regulator that maintains a constant output voltage of 1.8V, regardless of changes in the input voltage or load conditions. It achieves this by utilizing a feedback mechanism that continuously adjusts the internal circuitry to compensate for variations.

When the input voltage (VIN) is within the specified range, the regulator operates in normal mode. The feedback pin (FB) monitors the output voltage and compares it to a reference voltage. Any deviation from the desired output voltage triggers the internal circuitry to adjust the output accordingly.

The regulator also features a shutdown mode (SHDN) that allows the user to disable the device when not in use, reducing power consumption. Additionally, the bypass mode (BYPASS) enables direct connection of the output to the input, bypassing the regulator for maximum efficiency.

Detailed Application Field Plans

The MAX1792EUA18/V+T is suitable for various applications that require a stable 1.8V power supply. Some potential application fields include:

1. Portable Electronics: Powering microcontrollers, sensors, and other low-power devices in smartphones, tablets, and wearables.
2. Industrial Control Systems: Providing regulated voltage for control boards, sensors, and actuators in automation and monitoring systems.
3. Automotive Electronics: Supplying power to infotainment systems, dashboard displays, and other vehicle electronics.
4. IoT Devices: Enabling efficient power management in smart home devices, environmental sensors, and wireless communication modules.

Detailed and Complete Alternative Models

1. MAX1792ESA18/V+T: Similar to MAX1792EUA18/V+T, but in a different package (SOIC-8).
2. MAX1792EUA25/V+T: Regulates output voltage at 2.5V instead of 1.8V.
3. MAX1792EUA33/V+T: Regulates output voltage at 3.3V instead of 1.8V.

These alternative models offer similar functionality with slight variations in output voltage or package type, allowing designers to choose the most suitable option for their specific requirements.

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