Overview
The LM317MBSTT3 is an adjustable three-terminal positive linear voltage regulator produced by onsemi. This regulator 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 and requires only two external resistors to set the output voltage. The LM317MBSTT3 features internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow-out proof. This device is versatile and serves a wide variety of applications, including local, on-card regulation, and can also function as a simple adjustable switching regulator, 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 |
| Input Voltage Range | 3.75 V to 40 V | V |
| Line Regulation | Typical 0.01% | % |
| Load Regulation | Typical 0.1% | % |
| Thermal Shutdown | 180°C | °C |
| PSRR (120 Hz) | 80 dB (without CAdj), 65 dB (with CAdj = 10 μF) | dB |
| Recommended Operating Temperature | -40°C to 125°C | °C |
| Package Type | SOT-223-4 / TO-261-4D |
Key Features
- Output voltage adjustable between 1.2 V and 37 V
- Internal short-circuit current limiting and thermal overload protection
- Output transistor safe-area compensation
- Floating operation for high voltage applications
- Pb-Free packages available
- NCV prefix for automotive and other applications requiring site control changes
- Optional output capacitor to improve transient response
- ADJUST terminal can be bypassed to achieve high ripple-rejection ratios
Applications
- Local, on-card regulation
- Adjustable switching regulators
- Programmable output regulators
- Precision current regulators
- Desktop PCs
- ATCA solutions
- DVR and DVS
- Digital signage and still cameras
- Energy harvesting
- Automotive systems
- Consumer products
- Telematics and infotainment
Q & A
- What is the output voltage range of the LM317MBSTT3?
The output voltage range of the LM317MBSTT3 is from 1.2 V to 37 V.
- What is the maximum output current of the LM317MBSTT3?
The LM317MBSTT3 can supply in excess of 500 mA.
- What protection features does the LM317MBSTT3 have?
The LM317MBSTT3 features internal short-circuit current limiting, thermal shutdown, and safe area compensation.
- How do you set the output voltage of the LM317MBSTT3?
The output voltage is set using only two external resistors.
- What are some common applications of the LM317MBSTT3?
Common applications include local, on-card regulation, adjustable switching regulators, programmable output regulators, and precision current regulators. It is also used in desktop PCs, ATCA solutions, DVR and DVS, and more.
- What is the recommended operating temperature range for the LM317MBSTT3?
The recommended operating temperature range is from -40°C to 125°C.
- Does the LM317MBSTT3 have Pb-Free packages available?
- Can the LM317MBSTT3 be used in high voltage applications?
- How does the LM317MBSTT3 improve transient response?
- What is the significance of the ADJUST terminal in the LM317MBSTT3?
