AP2127K-4.2TRG1

Product Overview

Category

AP2127K-4.2TRG1 belongs to the category of voltage regulators.

Use

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

Characteristics

• Package: The AP2127K-4.2TRG1 comes in a compact SOT-23-5 package.
• Essence: It is a low dropout linear regulator with a fixed output voltage of 4.2V.
• Packaging/Quantity: The product is typically available in reels, with a quantity of 3000 units per reel.

Specifications

The specifications of AP2127K-4.2TRG1 are as follows:

• Input Voltage Range: 2.5V to 6.0V
• Output Voltage: 4.2V ±2%
• Dropout Voltage: 200mV (typical) at 150mA load current
• Quiescent Current: 50µA (typical)
• Load Regulation: ±0.5% (typical)
• Line Regulation: ±0.3% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP2127K-4.2TRG1 has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. NC (No Connection)
4. VOUT (Output Voltage)
5. EN (Enable)

Functional Features

• Low Dropout: The AP2127K-4.2TRG1 exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: With a quiescent current of only 50µA, this regulator minimizes power consumption in standby or idle modes.
• Thermal Shutdown Protection: The device incorporates thermal shutdown protection, preventing damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Compact package size allows for space-saving designs.
• Low dropout voltage ensures efficient regulation.
• Low quiescent current minimizes power consumption.
• Thermal shutdown protection enhances reliability.

Disadvantages

• Fixed output voltage may limit flexibility in certain applications.
• Limited input voltage range (2.5V to 6.0V) may not be suitable for all scenarios.

Working Principles

The AP2127K-4.2TRG1 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 stable even when the input voltage fluctuates.

Detailed Application Field Plans

The AP2127K-4.2TRG1 finds applications in various electronic devices and systems, 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 AP2127K-4.2TRG1.
2. IoT devices: Internet of Things (IoT) devices often require stable voltage levels for reliable operation, making this regulator suitable for IoT applications.
3. Industrial equipment: Control systems, sensors, and other industrial equipment can utilize AP2127K-4.2TRG1 for voltage regulation purposes.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP2127K-4.2TRG1 include:

1. LM1117-4.2: A popular voltage regulator with a fixed output voltage of 4.2V.
2. MCP1702-4202E: Another low dropout regulator with a fixed 4.2V output voltage.
3. TS2940CX-4.2: A compact SOT-23-5 packaged regulator with a fixed 4.2V output.

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

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