Overview
The NCV317BD2TR4G is an adjustable 3-terminal positive linear voltage regulator produced by onsemi. This device is part of the LM317 family and 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, requiring only two external resistors to set the output voltage. The NCV317BD2TR4G features internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow-out proof. This regulator is suitable for a wide variety of applications, including local on-card regulation and can be used as a programmable output regulator or precision current regulator.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input-Output Voltage Differential | VI-VO | -0.3 | - | 40 | Vdc |
| Output Current | IO | - | 1.5 | - | A |
| Output Voltage Range | Vout | 1.2 | - | 37 | V |
| Power Dissipation (Case 936, TA = +25°C) | PD | - | Internally Limited | - | W |
| Thermal Resistance, Junction-to-Ambient (Case 936) | θJA | - | 70 | - | °C/W |
| Operating Junction Temperature Range | TJ | -55 | - | 150 | °C |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C |
| Line Regulation (TA = +25°C, 3.0 V ≤ VI-VO ≤ 40 V) | Regline | - | 0.01 | 0.04 | %/V |
| Load Regulation (TA = +25°C, 10 mA ≤ IO ≤ Imax) | Regload | - | 0.1 | 5.0 | mV/% VO |
| Adjustment Pin Current | IAdj | - | 50 | 100 | μA |
| Reference Voltage (3.0 V ≤ VI-VO ≤ 40 V) | Vref | 1.2 | 1.25 | 1.3 | V |
Key Features
- Output current in excess of 1.5 A
- Output voltage 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 the need for stocking many fixed voltages
- Available in surface mount D2PAK-3 and standard 3-lead transistor packages
- 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 NCV317BD2TR4G serves a wide variety of applications, including local on-card regulation. It can be used to make a programmable output regulator or by connecting a fixed resistor between the adjustment and output, it can be used as a precision current regulator. This device is particularly suitable for automotive and other applications that require high reliability and specific regulatory compliance.
Q & A
- What is the output current range of the NCV317BD2TR4G?
The NCV317BD2TR4G can supply an output current in excess of 1.5 A.
- What is the adjustable output voltage range of the NCV317BD2TR4G?
The output voltage can be adjusted between 1.2 V and 37 V.
- Does the NCV317BD2TR4G have internal thermal protection?
- How is the output voltage set for the NCV317BD2TR4G?
The output voltage is set using two external resistors connected between the adjustment and output terminals.
- Is the NCV317BD2TR4G suitable for high voltage applications?
- What are the package options for the NCV317BD2TR4G?
- Is the NCV317BD2TR4G compliant with automotive standards?
- Is the NCV317BD2TR4G environmentally friendly?
- What is the operating junction temperature range for the NCV317BD2TR4G?
- How does the NCV317BD2TR4G handle short circuit conditions?
