Overview
The LM317MBDTRK is an adjustable three-terminal positive linear voltage regulator produced by onsemi. This device is capable of supplying in excess of 500 mA over an output voltage range of 1.2 V to 37 V. It is exceptionally easy to use, requiring only two external resistors to set the output voltage. The LM317MBDTRK features internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow-out proof. This regulator is versatile and serves a wide variety of applications, including local, on-card regulation, and can be used as a programmable output regulator or a precision current regulator.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | In excess of 500 mA | mA |
| Output Voltage Range | 1.2 V to 37 V | V |
| Line Regulation (Typical) | 0.01 % | % |
| Load Regulation (Typical) | 0.1 % | % |
| Thermal Overload Protection | Yes | |
| Short Circuit Current Limiting | Yes | |
| Output Transistor Safe-Area Compensation | Yes | |
| Floating Operation for High Voltage Applications | Yes | |
| Package Type | DPAK-3 | |
| Operating Temperature Range | -40°C to +125°C (for LM317MB, NCV317MB) | °C |
Key Features
- Output current in excess of 500 mA
- Output voltage adjustable between 1.2 V and 37 V
- Internal thermal overload protection and short circuit current limiting
- Output transistor safe-area compensation
- Floating operation for high voltage applications
- Eliminates the need for stocking many fixed voltage regulators
- Pb-free packages available
- NCV prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q100 qualified and PPAP capable
Applications
- Local, on-card regulation
- Desktop PCs
- Energy harvesting
- Telematics and infotainment
- Consumer products
- Automotive applications
- White goods and appliances
Q & A
- What is the output current range of the LM317MBDTRK?
The LM317MBDTRK can supply in excess of 500 mA.
- What is the adjustable output voltage range of the LM317MBDTRK?
The output voltage is adjustable between 1.2 V and 37 V.
- Does the LM317MBDTRK have internal thermal overload protection?
Yes, it has internal thermal overload protection.
- Can the LM317MBDTRK be used as a precision current regulator?
Yes, by connecting a fixed resistor between the adjustment and output terminals.
- What package types are available for the LM317MBDTRK?
The LM317MBDTRK is available in DPAK-3 packages.
- Is the LM317MBDTRK suitable for high voltage applications?
Yes, it supports floating operation for high voltage applications.
- Is the LM317MBDTRK RoHS compliant?
Yes, the LM317MBDTRK is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the operating temperature range for the LM317MBDTRK?
The operating temperature range is -40°C to +125°C for LM317MB and NCV317MB.
- Can the LM317MBDTRK be used in automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- How do you set the output voltage of the LM317MBDTRK?
The output voltage is set using only two external resistors.
