AP2121AK-3.3TRG1-1

Product Overview

Category

AP2121AK-3.3TRG1-1 belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize the output voltage.

Characteristics

• Voltage Regulation: AP2121AK-3.3TRG1-1 provides a regulated output voltage of 3.3V.
• Package: The product comes in a compact surface-mount package.
• Essence: It ensures a stable power supply by regulating the input voltage to a constant output voltage.
• Packaging/Quantity: AP2121AK-3.3TRG1-1 is typically packaged in reels or tubes, with varying quantities depending on the supplier.

Specifications

• Input Voltage Range: 4.5V - 18V
• Output Voltage: 3.3V
• Output Current: Up to 500mA
• Dropout Voltage: 200mV (typical)
• Quiescent Current: 50µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AP2121AK-3.3TRG1-1 has the following pin configuration:

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

Functional Features

• Low Dropout Voltage: The AP2121AK-3.3TRG1-1 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 low quiescent current, this voltage regulator minimizes power consumption when the load is light.
• Overcurrent Protection: The device incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
• Thermal Shutdown: In case of excessive temperature, the AP2121AK-3.3TRG1-1 features thermal shutdown to prevent damage.

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.
• Overcurrent protection enhances circuit reliability.
• Thermal shutdown protects against overheating.

Disadvantages

• Limited output current capacity may not be suitable for high-power applications.
• Requires external components for proper operation.

Working Principles

The AP2121AK-3.3TRG1-1 operates based on a linear voltage regulator principle. 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.

Detailed Application Field Plans

The AP2121AK-3.3TRG1-1 finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - Industrial control systems - Automotive electronics - Communication equipment

Detailed and Complete Alternative Models

• AP2121AK-3.0TRG1-1: Provides a regulated output voltage of 3.0V.
• AP2121AK-5.0TRG1-1: Provides a regulated output voltage of 5.0V.
• AP2121BK-3.3TRG1-1: Similar to AP2121AK-3.3TRG1-1 with additional features.

These alternative models offer similar functionality with slight variations in output voltage or additional features to cater to different application requirements.

In conclusion, the AP2121AK-3.3TRG1-1 is a voltage regulator that provides stable and regulated output voltage. Its compact size, low dropout voltage, and various protection features make it suitable for a wide range of electronic applications.