Overview
The NCV2951ACD3.3R2G is a micropower voltage regulator produced by onsemi. This device is part of the LP2950 and LP2951 series, designed to maintain proper regulation with an extremely low input-to-output voltage differential. It features a very low quiescent bias current of 75 μA and is capable of supplying output currents in excess of 100 mA. The NCV2951ACD3.3R2G is specifically tailored for automotive and other applications requiring unique site and control change requirements, and it is AEC-Q100 qualified and PPAP capable.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (3.3 V Versions) | VO | 3.260 | 3.300 | 3.340 | V |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C | |
| Maximum Die Junction Temperature Range | TJ | 150 | °C | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C | |
| Dropout Voltage | VI - VO | 350 | 450 | mV | |
| Supply Bias Current (IO = 100 mA) | ICC | 4.0 | 12 | mA | |
| Current Limit (VO Shorted to Ground) | ILimit | 220 | 300 | mA | |
| Thermal Regulation | Regthermal | 0.05 | 0.20 | %/W | |
| Output Noise Voltage (10 Hz to 100 kHz) | Vn | 56 | μVrms (CL = 100 μF) |
Key Features
- Low Quiescent Bias Current: 75 μA, making it suitable for low-power applications.
- High Output Current: Capable of supplying output currents in excess of 100 mA.
- Internal Protection: Features internal current and thermal limiting protection.
- Error Output: Signals an out-of-regulation condition or can be used as a microprocessor power-on reset.
- Programmable Output Voltage: Can be programmed from 1.25 V to 29 V using an external resistor divider.
- Logic Level Shutdown Input: Allows for easy shutdown control via a logic signal.
- AEC-Q100 Qualified and PPAP Capable: Suitable for automotive and other applications requiring stringent quality standards.
- Pb-Free and RoHS Compliant: Environmentally friendly and compliant with regulatory standards.
Applications
- Automotive Systems: Ideal for use in automotive electronics due to its AEC-Q100 qualification and PPAP capability.
- Industrial Control Systems: Suitable for use in industrial control systems requiring stable and regulated power supply.
- Medical Devices: Can be used in medical devices where low power consumption and high reliability are critical.
- Consumer Electronics: Applicable in various consumer electronic devices requiring efficient and stable voltage regulation.
- Embedded Systems: Useful in embedded systems where space and power efficiency are important considerations.
Q & A
- What is the output voltage range of the NCV2951ACD3.3R2G?
The NCV2951ACD3.3R2G has a fixed output voltage of 3.3 V, but it can also be programmed from 1.25 V to 29 V using an external resistor divider.
- What is the maximum output current of the NCV2951ACD3.3R2G?
The device can supply output currents in excess of 100 mA.
- What is the quiescent bias current of the NCV2951ACD3.3R2G?
The quiescent bias current is 75 μA.
- Does the NCV2951ACD3.3R2G have internal protection features?
Yes, it features internal current and thermal limiting protection.
- What is the purpose of the error output feature in the NCV2951ACD3.3R2G?
The error output can signal an out-of-regulation condition or be used as a microprocessor power-on reset.
- Is the NCV2951ACD3.3R2G suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other stringent applications.
- What is the operating ambient temperature range of the NCV2951ACD3.3R2G?
The operating ambient temperature range is from -40°C to +125°C.
- How does the logic level shutdown input work on the NCV2951ACD3.3R2G?
The logic level shutdown input allows for easy shutdown control via a logic signal.
- Is the NCV2951ACD3.3R2G Pb-Free and RoHS compliant?
Yes, it is Pb-Free and RoHS compliant.
- What is the typical dropout voltage of the NCV2951ACD3.3R2G?
The typical dropout voltage is between 350 mV to 450 mV for an output current of 100 mA.
