AP2121AK-2.5TRE1

Product Overview

Category

AP2121AK-2.5TRE1 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Package: The AP2121AK-2.5TRE1 comes in a compact SOT-23 package.
• Essence: This voltage regulator provides stable and reliable voltage output.
• Packaging/Quantity: It is typically sold in reels, with a quantity of 3000 units per reel.

Specifications

The specifications of AP2121AK-2.5TRE1 are as follows:

• Input Voltage Range: 2.7V to 6.0V
• Output Voltage: 2.5V
• Output Current: Up to 150mA
• Dropout Voltage: 200mV (typical)
• 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 AP2121AK-2.5TRE1 has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

The functional features of AP2121AK-2.5TRE1 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: It consumes minimal current when no load is connected, thus conserving power.
• Overcurrent protection: The device incorporates overcurrent protection to safeguard against excessive current flow.
• Thermal shutdown protection: It includes a thermal shutdown feature that prevents the regulator from overheating.

Advantages and Disadvantages

Advantages

• Compact package size allows for easy integration into space-constrained designs.
• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage ensures efficient regulation even with low input voltages.
• Overcurrent and thermal shutdown protection enhance reliability and safety.

Disadvantages

• Limited output current capability may not be suitable for high-power applications.
• The fixed output voltage of 2.5V may not meet the requirements of all circuits.

Working Principles

The AP2121AK-2.5TRE1 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. This feedback mechanism ensures that the output voltage remains constant despite variations in the input voltage or load conditions.

Detailed Application Field Plans

AP2121AK-2.5TRE1 finds application in various electronic devices and systems, including but not limited to:

1. Battery-powered devices: It can be used to regulate the voltage in portable electronics such as smartphones, tablets, and wearable devices.
2. IoT devices: The voltage regulator is suitable for IoT applications where stable power supply is crucial.
3. Embedded systems: It can be employed in microcontroller-based systems, ensuring reliable voltage for their operation.
4. Automotive electronics: The regulator can be utilized in automotive applications, providing stable voltage to sensitive components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AP2121AK-2.5TRE1 include:

1. AP2112AK-2.5TRE1: A similar voltage regulator with a fixed output voltage of 2.5V.
2. AP2201AK-2.5TRE1: Another voltage regulator with a fixed output voltage of 2.5V, but with higher output current capability.
3. AP1117AK-2.5TRE1: A voltage regulator with a fixed output voltage of 2.5V and adjustable output current.

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

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