LM317

The LM317 is a popular adjustable voltage regulator used to provide a stable output voltage from a varying input voltage source. It is a three-terminal device capable of supplying a maximum of 1.5A of current. The output voltage can be adjusted using external resistors, making it versatile for various applications requiring a fixed or variable voltage supply.

Key Features:

• Adjustable output voltage ranging from 1.25V to 37V
• Capable of supplying up to 1.5A of current
• High voltage regulation with low dropout
• Internal short-circuit and thermal protection
• Easy to use with standard external components
• Wide input voltage range

Technical Specifications:

• Output Voltage Range: 1.25V to 37V
• Maximum Output Current: 1.5A
• Input Voltage Range: Up to 40V
• Dropout Voltage: 3V at 1.5A
• Line Regulation: 0.01% (typical)
• Load Regulation: 0.1% (typical)
• Package Type: TO-220, TO-3

Applications:

• Adjustable power supplies
• Battery chargers
• Voltage regulation in electronic circuits
• Power management in electronic devices

Usage:

1. Connect the input voltage to the input terminal (IN).
2. Connect the output terminal (OUT) to the load or circuit requiring the regulated voltage.
3. Adjust the output voltage by selecting appropriate resistor values between the adjustment terminal (ADJ) and the output terminal (OUT).
4. Ensure proper heat dissipation using a heatsink if necessary.

Caution:

• Verify input voltage and current limits to avoid damage.
• Use appropriate resistors for accurate voltage adjustment.
• Ensure adequate cooling to prevent overheating.

Datasheet:
For detailed technical specifications, refer to the LM317 Datasheet.