AP2139AK-1.8TRG1

Product Overview

Category

AP2139AK-1.8TRG1 belongs to the category of voltage regulators.

Use

This product is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: The AP2139AK-1.8TRG1 comes in a compact surface mount package.
• Essence: It is a low dropout linear regulator designed for efficient voltage regulation.
• Packaging/Quantity: The product is typically packaged in reels or tubes, with varying quantities depending on the supplier.

Specifications

The following are the specifications of AP2139AK-1.8TRG1:

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.8V
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 75µA (typical)

Detailed Pin Configuration

The AP2139AK-1.8TRG1 has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

The functional features of AP2139AK-1.8TRG1 include:

• Low dropout voltage: The regulator maintains a stable output voltage even when the input voltage is close to the desired output voltage.
• Low quiescent current: The device consumes minimal current when in standby mode, conserving power.
• Overcurrent and thermal protection: The regulator includes built-in protection mechanisms to prevent damage due to excessive current or temperature.

Advantages and Disadvantages

Advantages: - High efficiency and low power consumption - Compact size and surface mount package - Wide input voltage range

Disadvantages: - Limited maximum output current - Dropout voltage may affect performance in low input voltage scenarios

Working Principles

The AP2139AK-1.8TRG1 operates based on the principle of linear regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. This ensures that the output voltage remains constant despite variations in the input voltage.

Detailed Application Field Plans

AP2139AK-1.8TRG1 finds applications in various electronic devices, including but not limited to:

1. Battery-powered devices: The regulator can be used to provide a stable voltage supply for portable electronics such as smartphones, tablets, and wearable devices.
2. IoT devices: It is suitable for powering sensors, microcontrollers, and other components in Internet of Things (IoT) devices.
3. Automotive electronics: The regulator can be utilized in automotive applications, providing a reliable power source for various systems like infotainment, lighting, and control modules.

Detailed and Complete Alternative Models

Some alternative models to AP2139AK-1.8TRG1 include:

1. LM1117-1.8: A popular voltage regulator with similar specifications and functionality.
2. MCP1700-1802E/TO: Another low dropout linear regulator offering a 1.8V output voltage.
3. TPS79618: A high-performance voltage regulator with a fixed 1.8V output.

These alternatives can be considered based on specific requirements and availability.

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