AP2138R-1.8TRG1

Product Overview

Category

AP2138R-1.8TRG1 belongs to the category of voltage regulators.

Use

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

Characteristics

• Package: The AP2138R-1.8TRG1 comes in a small surface-mount package.
• Essence: It is a low-dropout linear regulator with a fixed output voltage of 1.8V.
• Packaging/Quantity: The product is typically packaged in reels and available in large quantities.

Specifications

The following are the specifications of AP2138R-1.8TRG1:

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.8V
• Dropout Voltage: 200mV (typical)
• Maximum Output Current: 300mA
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP2138R-1.8TRG1 has the following pin configuration:

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

Functional Features

The functional features of AP2138R-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 protection: The regulator includes built-in protection against excessive current, safeguarding the circuitry.
• Thermal shutdown: In case of excessive temperature, the regulator shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• Stable output voltage regulation.
• Low dropout voltage ensures efficient power conversion.
• Small package size allows for space-saving designs.
• Overcurrent protection enhances circuit reliability.

Disadvantages

• Limited maximum output current of 300mA.
• Fixed output voltage may not be suitable for all applications.

Working Principles

The AP2138R-1.8TRG1 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The device compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

AP2138R-1.8TRG1 finds applications in various electronic devices, including but not limited to:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearable devices can benefit from the voltage regulation provided by this product.
2. IoT devices: Internet of Things (IoT) devices often require stable voltage levels for reliable operation, making the AP2138R-1.8TRG1 suitable for such applications.
3. Industrial equipment: The regulator can be used in industrial control systems, sensors, and other electronic components that require precise voltage regulation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP2138R-1.8TRG1 include:

1. AP2112-1.8TRG1: A low-dropout linear regulator with a fixed output voltage of 1.8V.
2. AP2204K-1.8TRG1: A low-power voltage regulator with a fixed output voltage of 1.8V.
3. AP7361C-1.8TRG1: A high-accuracy voltage regulator with a fixed output voltage of 1.8V.

These alternative models can be considered based on specific application requirements and design constraints.

In conclusion, AP2138R-1.8TRG1 is a voltage regulator that provides stable voltage regulation for various electronic devices. Its low dropout voltage, small package size, and built-in protection features make it suitable for a range of applications. However, designers should consider the limited maximum output current and fixed output voltage when selecting this product.