Overview
The NCV317BD2T is an adjustable 3-terminal positive voltage regulator produced by ON Semiconductor. This device is capable of supplying in excess of 1.5 A 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 NCV317BD2T is designed with internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow-out proof.
Key Specifications
| Rating | Symbol | Value | Unit |
|---|---|---|---|
| Input-Output Voltage Differential | VI-VO | -0.3 to 40 | Vdc |
| Power Dissipation (Case 221A, TA = +25°C) | PD | Internally Limited | W |
| Thermal Resistance, Junction-to-Ambient (Case 221A) | θJA | 65 | °C/W |
| Thermal Resistance, Junction-to-Case (Case 221A) | θJC | 5.0 | °C/W |
| Operating Junction Temperature Range | TJ | -55 to +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Output Current | IO | Up to 1.5 A | A |
| Output Voltage Range | VO | 1.2 V to 37 V | V |
| Adjustment Pin Current | IAdj | 50 to 100 μA | μA |
| Line Regulation (TA = +25°C, 3.0 V ≤ VI-VO ≤ 40 V) | Regline | 0.01 to 0.04 %/V | %/V |
| Load Regulation (TA = +25°C, 10 mA ≤ IO ≤ Imax) | Regload | 5.0 mV to 0.1 % VO | mV or % VO |
Key Features
- Output Current in Excess of 1.5 A
- Output Adjustable between 1.2 V and 37 V
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting Constant with Temperature
- Output Transistor Safe-Area Compensation
- Floating Operation for High Voltage Applications
- Eliminates Stocking many Fixed Voltages
- Available in Surface Mount D2PAK-3 and Standard 3-Lead Transistor Package
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
The NCV317BD2T serves a wide variety of applications, including local, on-card regulation. It can be used to make a programmable output regulator or as a precision current regulator by connecting a fixed resistor between the adjustment and output pins. This device is also suitable for floating operation in high voltage applications.
Q & A
- What is the output current capability of the NCV317BD2T?
The NCV317BD2T can supply an output current in excess of 1.5 A.
- What is the adjustable output voltage range of the NCV317BD2T?
The output voltage can be adjusted between 1.2 V and 37 V.
- Does the NCV317BD2T have internal thermal protection?
Yes, it has internal thermal overload protection and thermal shutdown.
- How do I set the output voltage of the NCV317BD2T?
The output voltage can be set using two external resistors connected between the adjustment and output pins.
- What are the package options for the NCV317BD2T?
The device is available in Surface Mount D2PAK-3 and Standard 3-Lead Transistor Package.
- Is the NCV317BD2T suitable for automotive applications?
Yes, it is AEC-Q100 Qualified and PPAP Capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
- What is the operating junction temperature range of the NCV317BD2T?
The operating junction temperature range is -55°C to +150°C.
- Does the NCV317BD2T have short circuit current limiting?
Yes, it has internal short circuit current limiting constant with temperature.
- Is the NCV317BD2T RoHS compliant?
Yes, the device is Pb-Free, Halogen Free/BFR Free and RoHS Compliant.
- Can the NCV317BD2T 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.
