Overview
The NCV317MBSTT3G is an adjustable 3-terminal positive Low Dropout (LDO) Linear Voltage Regulator produced by onsemi. This regulator is capable of supplying in excess of 0.5 A 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 device 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, as a programmable output regulator, or as a precision current regulator by connecting a fixed resistor between the adjustment and output pins.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current | 0.5 | A |
| Output Voltage Range | 1.2 V to 37 V | V |
| Input Voltage Range | 3.1 V to 40 V | V |
| Internal Thermal Overload Protection | Yes | |
| Internal Short Circuit Current Limiting | Yes | |
| Output Transistor Safe-Area Compensation | Yes | |
| Package Type | SOT-223-4 / TO-261-4D | |
| Thermal Shutdown Temperature | 180°C | °C |
| PSRR (Power Supply Rejection Ratio) | 80 dB (with CAdj) | dB |
| Ripple Rejection | 80 dB (at 120 Hz with CAdj) | dB |
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
- Ultra-high PSRR (Power Supply Rejection Ratio)
- Pb-Free packages available
- Eliminates the need for stocking many fixed voltage regulators
Applications
- Automotive Audio and Infotainment
- Automotive Accessories
- Automotive Dashboard electronics
- Automotive Instrument Cluster
- Automotive Camera Displays
- Industrial applications
- Local, on-card regulation
- Programmable output regulator
- Precision current regulator
Q & A
- What is the output current capability of the NCV317MBSTT3G?
The NCV317MBSTT3G can supply an output current in excess of 0.5 A.
- What is the adjustable output voltage range of the NCV317MBSTT3G?
The output voltage can be adjusted between 1.2 V and 37 V.
- Does the NCV317MBSTT3G have internal thermal protection?
Yes, it features internal thermal overload protection and thermal shutdown.
- What package types are available for the NCV317MBSTT3G?
The regulator is available in SOT-223-4 / TO-261-4D packages.
- What is the thermal shutdown temperature of the NCV317MBSTT3G?
The thermal shutdown temperature is 180°C.
- How is the output voltage set on the NCV317MBSTT3G?
The output voltage is set using two external resistors connected to the adjustment pin.
- Can the NCV317MBSTT3G be used as a precision current regulator?
Yes, by connecting a fixed resistor between the adjustment and output pins, it can be used as a precision current regulator.
- What is the PSRR of the NCV317MBSTT3G?
The PSRR is 80 dB with the use of an external capacitor (CAdj) connected between the adjustment pin and ground.
- Is the NCV317MBSTT3G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and suitable for various automotive applications.
- Are Pb-Free packages available for the NCV317MBSTT3G?
Yes, Pb-Free packages are available.
