AP2125KC-1.8TRG1

Product Overview

Category

AP2125KC-1.8TRG1 belongs to the category of voltage regulators.

Use

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

Characteristics

• Package: The AP2125KC-1.8TRG1 comes in a compact SOT-23-5 package.
• Essence: It is a low dropout linear regulator with a fixed output voltage of 1.8V.
• Packaging/Quantity: The product is typically sold in reels, with each reel containing a specific quantity of units.

Specifications

The following are the specifications of AP2125KC-1.8TRG1:

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.8V
• Dropout Voltage: 300mV at 150mA
• Output Current: Up to 150mA
• Quiescent Current: 50µA (typical)
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP2125KC-1.8TRG1 has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. EN (Enable)
4. BYP (Bypass)
5. VOUT (Output Voltage)

Functional Features

The key functional features of AP2125KC-1.8TRG1 include:

• Low dropout voltage, ensuring efficient regulation even with small input-output differentials.
• Low quiescent current, reducing power consumption in standby or idle modes.
• Built-in thermal shutdown and current limit protection mechanisms for enhanced reliability.
• Fast transient response, making it suitable for applications with varying load conditions.

Advantages and Disadvantages

Advantages

• Compact package size allows for space-saving designs.
• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage ensures efficient regulation even with low input voltages.
• Excellent line and load regulation characteristics provide stable output voltage.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Fixed output voltage restricts flexibility in certain circuit designs.

Working Principles

AP2125KC-1.8TRG1 operates based on the principle of linear voltage regulation. It utilizes a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. The internal feedback mechanism continuously monitors the output voltage and adjusts the pass transistor accordingly to maintain a stable 1.8V output.

Detailed Application Field Plans

AP2125KC-1.8TRG1 finds application in various electronic devices and systems, including but not limited to:

1. Battery-powered portable devices such as smartphones, tablets, and digital cameras.
2. Embedded systems and microcontrollers requiring stable voltage supply.
3. IoT (Internet of Things) devices and sensors.
4. Automotive electronics, including infotainment systems and control modules.
5. Industrial automation equipment and control systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP2125KC-1.8TRG1 include:

1. LM1117-1.8: A popular low dropout linear regulator with a fixed 1.8V output voltage.
2. MCP1700-1802E/TO: Another 1.8V fixed output voltage regulator with low dropout characteristics.
3. TS2940CX-1.8: A compact SOT-89 packaged regulator providing a fixed 1.8V output.

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

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