The APL1084-33UC-TRL is a low dropout (LDO) linear regulator manufactured by Anpec Electronics. It is designed to provide a stable and regulated 3.3V output voltage from a higher input voltage. LDO regulators are known for their ability to operate with a small difference between the input and output voltages, making them suitable for battery-powered and other low-voltage applications.

Applications

• Motherboards: Used to regulate voltage for critical components.
• Graphics Cards: Provides stable power to voltage-sensitive components.
• LCD Monitors: Used in the power supply circuitry to generate required voltages.
• Set-Top Boxes: Regulates voltage for various integrated circuits.
• Embedded Systems: Integrated to provide stable power for microcontrollers and other digital circuits.

Features

• Low Dropout Voltage: Operates with a small difference between input and output voltage.
• 3.3V Fixed Output Voltage: Provides a stable and regulated output voltage.
• High Output Current: Delivers up to 5A of output current.
• Over-Current Protection: Protects the regulator from damage due to excessive current draw.
• Over-Temperature Protection: Protects the regulator from thermal damage.
• Adjustable Output Voltage (with external resistors, potentially): Some variants may allow for output voltage adjustment with external components.

Benefits

• Stable Power Supply: Provides a stable and regulated output voltage, ensuring reliable operation of downstream components.
• High Efficiency: Reduces power dissipation and extends battery life in portable applications.
• Protection Features: Protects the regulator and downstream components from damage.
• Compact Size: Enables compact designs.

Additional Details

The APL1084-33UC-TRL is typically available in a TO-263 package. Key specifications include a dropout voltage of typically 1.3V at 5A, a line regulation of 0.2% (typical), and a load regulation of 0.4% (typical). It requires external capacitors for stability. It is designed to operate over a wide temperature range. The LDO regulator also includes a thermal shutdown feature which activates when the junction temperature exceeds a certain limit, typically around 150°C. The part number includes suffix information: UC likely refers to package type and TRL indicates tape and reel packaging.