Overview
The LM217MDT-TR is a medium current, adjustable positive voltage regulator manufactured by STMicroelectronics. This component is part of the LM217M/LM317M series and is designed to provide a regulated output voltage in the range of 1.2V to 37V. It is available in a TO-252-3 (DPAK) surface mount package, making it suitable for a variety of applications requiring adjustable voltage regulation.
The device is capable of supplying up to 500 mA of load current and features thermal overload protection, short-circuit protection, and output transition safe area compensation. The LM217MDT-TR is also known for its floating operation, which allows it to regulate high voltage supplies effectively.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage Range | 1.2 to 37 | V |
| Output Current (Max) | 500 | mA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Regulator Topology | Adjustable | |
| No. of Outputs | Single | |
| Output Noise | 0.003 µV | µV |
| Load Regulation (%) | 0.1% to 0.3% | % |
| Line Regulation (%) | 0.01% to 0.04% | % |
| Package Style | TO-252-3 (DPAK) | |
| Mounting Method | Surface Mount | |
| Thermal Resistance Junction-Case | 8 | °C/W |
| Thermal Resistance Junction-Ambient | 100 | °C/W |
Key Features
- Adjustable Output Voltage: The output voltage can be adjusted over a range of 1.2V to 37V using a simple resistive divider.
- High Current Capability: The device can supply up to 500 mA of load current, making it suitable for medium current applications.
- Thermal and Short-Circuit Protection: Built-in thermal overload protection and short-circuit protection ensure the device operates safely under various conditions.
- Low Noise Operation: The regulator features low output noise, which is crucial for applications requiring stable voltage supply.
- Line and Load Regulation: Excellent line and load regulation characteristics ensure stable output voltage despite changes in input voltage or load current.
- Floating Operation: The device can operate in floating mode, allowing it to regulate high voltage supplies effectively.
- Output Transition Safe Area Compensation: This feature ensures safe operation during output transitions.
Applications
The LM217MDT-TR is versatile and can be used in a variety of applications, including:
- Power Supplies: Adjustable power supplies where the output voltage needs to be set dynamically.
- Industrial Control Systems: Systems requiring stable and adjustable voltage supplies.
- Medical Equipment: Devices that need precise and stable voltage regulation.
- Aerospace and Defense: Applications requiring high reliability and adjustable voltage regulation.
- Automotive Systems: Systems in vehicles that require stable and adjustable voltage supplies.
Q & A
- What is the output voltage range of the LM217MDT-TR?
The output voltage range is 1.2V to 37V.
- What is the maximum output current of the LM217MDT-TR?
The maximum output current is 500 mA.
- What type of package does the LM217MDT-TR come in?
The device is available in a TO-252-3 (DPAK) surface mount package.
- Does the LM217MDT-TR have thermal protection?
- How is the output voltage adjusted on the LM217MDT-TR?
The output voltage is adjusted using a simple resistive divider.
- What is the operating temperature range of the LM217MDT-TR?
The operating temperature range is -40°C to +125°C.
- Does the LM217MDT-TR have short-circuit protection?
- What is the typical line regulation of the LM217MDT-TR?
The typical line regulation is 0.01% to 0.04%.[
- Can the LM217MDT-TR be used in high voltage applications?
- What is the output noise voltage of the LM217MDT-TR?
