Overview
The LM317MADTRK, produced by onsemi, is an adjustable three-terminal positive voltage regulator. 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 designed to be exceptionally easy to use, requiring only two external resistors to set the output voltage. The LM317MADTRK features internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow-out proof. This regulator is versatile and can be used in various applications, including local on-card regulation, programmable output regulation, and as a precision current regulator.
Key Specifications
| Attribute | Value |
|---|---|
| Input Voltage - Max | 40 V |
| Output Voltage Range | 1.2 V to 37 V |
| Output Current - Max | 500 mA |
| Tolerance (%) | ±4% |
| Operating Temperature Range | 0°C to 125°C |
| Regulator Topology | Adjustable |
| No. of Outputs | Single |
| Load Regulation | 70 mV (typ. 0.1% for 10 mA ≤ IO ≤ 0.5 A) |
| Line Regulation (%) | 0.01% (typ.) |
| Package Style | TO-252-3 (DPAK) |
| Mounting Method | Surface Mount |
Key Features
- Output Current in Excess of 500 mA
- Output Adjustable Between 1.2 V and 37 V
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting
- Output Transistor Safe-Area Compensation
- Floating Operation for High Voltage Applications
- Eliminates Stocking Many Fixed Voltages
- Pb-Free Packages Available
- NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
Applications
- Local, on-card regulation
- Programmable output regulation
- Precision current regulation by connecting a fixed resistor between the adjustment and output terminals
- Adjustable switching regulators
- ATCA solutions
- DLP: 3D biometrics, hyperspectral imaging, optical networking, and spectroscopy
- DVR and DVS
- Desktop PCs
- Digital signage and still cameras
- ECG electrocardiograms
- EV HEV chargers: levels 1, 2, and 3
- Electronic shelf labels
- Energy harvesting
Q & A
- What is the maximum output current of the LM317MADTRK?
The maximum output current of the LM317MADTRK is in excess of 500 mA.
- What is the output voltage range of the LM317MADTRK?
The output voltage range of the LM317MADTRK is from 1.2 V to 37 V.
- What type of protection does the LM317MADTRK have?
The LM317MADTRK features internal thermal overload protection and internal short circuit current limiting.
- How is the output voltage set for the LM317MADTRK?
The output voltage is set using only two external resistors.
- What package style is the LM317MADTRK available in?
The LM317MADTRK is available in the TO-252-3 (DPAK) package style.
- Can the LM317MADTRK be used as a precision current regulator?
Yes, by connecting a fixed resistor between the adjustment and output terminals, the LM317MADTRK can be used as a precision current regulator.
- What is the operating temperature range of the LM317MADTRK?
The operating temperature range of the LM317MADTRK is from 0°C to 125°C.
- Does the LM317MADTRK have Pb-Free packages available?
Yes, Pb-Free packages are available for the LM317MADTRK.
- What are some common applications of the LM317MADTRK?
Common applications include local on-card regulation, programmable output regulation, adjustable switching regulators, and various industrial and consumer electronics applications.
- How does the LM317MADTRK protect against overload?
The LM317MADTRK includes internal current limiting and thermal shutdown to protect against overload.
