The AZ1085D-ADJ is an adjustable low dropout positive voltage regulator manufactured by BCD Semiconductor Manufacturing Limited. It is designed to provide a regulated output voltage that can be adjusted using external resistors, offering flexibility in various power supply applications. This regulator is frequently used in applications where a specific, non-standard voltage is required or where the voltage needs to be adjusted during operation.

Applications:

• Adjustable Power Supplies: Used in benchtop power supplies and other adjustable voltage sources.
• Microcontroller Power: Provides a regulated voltage for microcontrollers and associated circuitry.
• FPGA Power: Supplies stable voltage to FPGAs and their peripherals.
• Post Regulation: Used after a switching regulator to provide a cleaner and more stable output voltage.
• Battery Chargers: Can be used in battery charging circuits to provide a controlled charging voltage.

Features:

• Adjustable Output Voltage: Output voltage can be set using external resistors.
• Low Dropout Voltage: Operates with minimal difference between input and output voltage.
• High Output Current: Capable of delivering a substantial amount of current.
• Overcurrent Protection: Includes built-in protection against overcurrent conditions.
• Thermal Shutdown: Protects the regulator from damage due to overheating.

Benefits:

• Flexible Voltage Selection: Allows for customized output voltage based on application requirements.
• Stable and Reliable Power: Ensures consistent performance of powered components.
• Protection Against Faults: Prevents damage from overcurrent and thermal overload.
• Efficient Operation: Minimizes power loss and heat generation.

Additional Details:

The AZ1085D-ADJ typically comes in a TO-252 or TO-263 package. The output voltage is set using a resistor divider connected to the feedback pin. The output voltage range is typically from 1.25V to the input voltage minus the dropout voltage. External capacitors are required for stability. Refer to the datasheet for specific component values and layout recommendations.