The LM1084S-ADJ/TR is an adjustable output low dropout (LDO) positive voltage regulator manufactured by HGSEMI. This regulator allows the user to set the output voltage to a desired level using external resistors. It's designed to maintain a stable output voltage even when the input voltage is close to the output voltage, making it suitable for applications where power efficiency and low voltage operation are critical. The LM1084S-ADJ/TR can deliver up to 5A of output current.

Applications

• Adjustable Power Supplies
• Post Regulator for Switching Power Supplies
• Battery Chargers
• Microprocessor Power Supplies
• Motherboard Power Supplies
• High Efficiency Linear Regulators

Features

• Adjustable Output Voltage: 1.25V to 29V (depending on external resistors)
• Maximum Output Current: 5A
• Low Dropout Voltage: Typically 1.3V at 5A
• Short Circuit Protection
• Thermal Overload Protection
• Reverse Battery Protection
• Operating Temperature Range: -40°C to +125°C
• Available in TO-263 Package

Benefits

• Adjustable Output Voltage: Allows for flexible voltage setting to suit various application needs.
• High Current Output: Capable of delivering up to 5A of current, suitable for powering high-demand devices.
• Low Dropout Voltage: Maintains regulation with minimal input-output voltage difference, improving efficiency.
• Robust Protection: Provides short circuit, thermal overload, and reverse battery protection, enhancing reliability.
• Wide Operating Temperature Range: Suitable for use in harsh environments.

Additional Details

The LM1084S-ADJ/TR is supplied in a TO-263 package, designed for surface mounting. It features a three-terminal configuration (Vin, Vout, and Adjust). The output voltage is set using two external resistors connected in a voltage divider configuration. The dropout voltage is specified at a current of 5A, ensuring stable performance under heavy load conditions. The regulator's internal protection circuitry safeguards against damage from short circuits and excessive heat. It is commonly used in applications requiring a regulated adjustable voltage power supply with high current capability. The "/TR" suffix indicates that the part is supplied in tape and reel packaging for automated assembly.