Overview
The LM317MDTX is an adjustable linear voltage regulator produced by Fairchild Semiconductor, now part of ON Semiconductor. This regulator is designed to provide a stable output voltage that can be adjusted between 1.25V and 37V. It is a 3-pin device packaged in a TO-252 format, making it suitable for surface mount applications. The LM317MDTX is known for its high accuracy and stability, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Minimum Output Voltage | 1.2 | V |
| Maximum Output Voltage | 37 | V |
| Maximum Output Current | 500 | mA |
| Operating Temperature Range | -40 to 125 | °C |
| Thermal Resistance (θJA) | 24 | °C/W |
| Dropout Voltage (typ) | 2250 | mV |
| Line Regulation | 0.01 to 0.07 %/V | |
| Load Regulation | 0.1 to 1.5 % | |
| PSRR at 100 KHz | 40 | dB |
Key Features
- Adjustable Output Voltage: The output voltage can be adjusted between 1.25V and 37V.
- High Accuracy: Offers high line and load regulation accuracy.
- Thermal Stability: Stable operation over a wide temperature range (-40°C to 125°C).
- Low Dropout Voltage: Typical dropout voltage of 2250 mV.
- High PSRR: Good power supply rejection ratio (PSRR) of 40 dB at 100 KHz.
- Surface Mount Package: Available in TO-252 package, suitable for surface mount applications.
Applications
- Power Supplies: Used in various power supply designs where adjustable output voltage is required.
- Industrial Control Systems: Suitable for industrial control systems that need stable and adjustable voltage regulation.
- Consumer Electronics: Found in consumer electronics such as audio equipment, medical devices, and other applications requiring stable voltage regulation.
- Automotive Systems: Used in automotive systems where robust and reliable voltage regulation is necessary.
Q & A
- What is the output voltage range of the LM317MDTX?
The output voltage can be adjusted between 1.25V and 37V.
- What is the maximum output current of the LM317MDTX?
The maximum output current is 500 mA.
- What is the operating temperature range of the LM317MDTX?
The operating temperature range is -40°C to 125°C.
- What is the typical dropout voltage of the LM317MDTX?
The typical dropout voltage is 2250 mV.
- What is the PSRR at 100 KHz for the LM317MDTX?
The PSRR at 100 KHz is 40 dB.
- In what package is the LM317MDTX available?
The LM317MDTX is available in a TO-252 package.
- Is the LM317MDTX suitable for surface mount applications?
- What are some common applications of the LM317MDTX?
- How accurate is the line regulation of the LM317MDTX?
- What is the thermal resistance (θJA) of the LM317MDTX?
