The LM1084S-3.3/TR is a low dropout (LDO) positive voltage regulator manufactured by HGSEMI. This regulator provides a fixed 3.3V output voltage with a maximum output current of 5A. 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.

Applications

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

Features

• Fixed Output Voltage: 3.3V
• 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

• 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.
• Fixed Output Voltage: Simplifies design and eliminates the need for external feedback components.
• Wide Operating Temperature Range: Suitable for use in harsh environments.

Additional Details

The LM1084S-3.3/TR is supplied in a TO-263 package, designed for surface mounting. It features a three-terminal configuration (Vin, Vout, and Ground). 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 3.3V power supply with high current capability. The "/TR" suffix indicates that the part is supplied in tape and reel packaging for automated assembly.