Overview
The LM317T-DG is an adjustable voltage regulator produced by STMicroelectronics. It is designed to serve as a positive adjustable voltage regulator, capable of supplying more than 1.5A of load current. The output voltage of the LM317T-DG is adjustable over a range of 1.2 to 37V, making it highly versatile for various applications. The device is packaged in a TO-220 (double gauge) package and features a simple configuration using a resistive divider to set the nominal output voltage, thereby eliminating the need for multiple fixed regulators.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Type | Adjustable | |
| No. of Outputs | 1 | |
| Output Voltage Min | 1.2 | V |
| Output Voltage Max | 37 | V |
| Input Voltage Max | 40 | V |
| Output Current Max | 1.5 | A |
| IC Case / Package | TO-220 | |
| No. of Pins | 3 | |
| IC Mounting | Through Hole | |
| Operating Temperature Min | 0 | °C |
| Operating Temperature Max | 125 | °C |
Key Features
- Output voltage range: 1.2 to 37V
- Output current in excess of 1.5A
- 0.1% line and load regulation
- Floating operation for high voltages
- Complete series of protections: current limiting, thermal shutdown, and SOA control
- Internally limited power dissipation
Applications
The LM317T-DG is suitable for a wide range of applications where adjustable voltage regulation is required. These include:
- Power supplies for electronic equipment
- Battery chargers and power management systems
- Voltage regulators in automotive and industrial systems
- Adjustable power sources for laboratory and testing equipment
Q & A
- What is the output voltage range of the LM317T-DG?
The output voltage range of the LM317T-DG is 1.2 to 37V.
- What is the maximum output current of the LM317T-DG?
The maximum output current of the LM317T-DG is 1.5A.
- What type of package does the LM317T-DG come in?
The LM317T-DG comes in a TO-220 (double gauge) package.
- What are the operating temperature limits of the LM317T-DG?
The operating temperature range of the LM317T-DG is from 0°C to 125°C.
- Does the LM317T-DG have built-in protection features?
Yes, the LM317T-DG includes current limiting, thermal shutdown, and SOA control for protection.
- How is the output voltage of the LM317T-DG adjusted?
The output voltage of the LM317T-DG is adjusted using a resistive divider.
- Is the LM317T-DG RoHS compliant?
Yes, the LM317T-DG is RoHS compliant.
- What is the thermal resistance junction-ambient of the LM317T-DG in a TO-220 package?
The thermal resistance junction-ambient of the LM317T-DG in a TO-220 package is 50°C/W.
- Does the LM317T-DG contain any SVHC substances?
No, the LM317T-DG does not contain any SVHC substances.
- What is the line and load regulation of the LM317T-DG?
The line and load regulation of the LM317T-DG is 0.1%.
