Overview
The NCV8705MT18TCG is a low noise, low power consumption, and low dropout Linear Voltage Regulator produced by onsemi. This device is designed to provide an extremely clean power supply, making it ideal for applications requiring high noise immunity and low quiescent current. The NCV8705 features an innovative Adaptive Ground Current circuit, ensuring ultra-low ground current during light load conditions. It is suitable for use in products such as RF receivers, imaging sensors, audio processors, and other components that demand a high-quality power supply.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Input Voltage | VIN | 2.5 | 5.5 | V | |
| Output Voltage Range (Adjustable) | VOUT | 0.8 | 5.5 - VDO | V | |
| Undervoltage Lock-out | UVLO | 1.2 | 1.6 | 1.9 | V |
| Output Voltage Accuracy | VOUT | -2 | +2 | % | |
| Reference Voltage | VREF | 0.8 | V | ||
| Quiescent Current | IQ | 13 | 25 | μA | |
| Dropout Voltage | VDO | 230 | 350 | mV | |
| Output Current Limit | ICL | 510 | 950 | mA | |
| Power Supply Rejection Ratio | PSRR | 71 | dB at 1 kHz | ||
| Output Noise Voltage | VN | 12 | μVrms (100 Hz to 100 kHz) | ||
| Thermal Shutdown Temperature | TSD | 160 | °C |
Key Features
- Operating Input Voltage Range: 2.5 V to 5.5 V
- Available in fixed and adjustable voltage options: 0.8 V to 3.5 V (fixed), 0.8 V to 5.5 V (adjustable)
- Ultra-low quiescent current of typically 13 μA
- Ultra-low noise: 12 μVrms from 100 Hz to 100 kHz
- Very low dropout voltage: 230 mV typical at 500 mA
- ±2% accuracy over load/line/temperature
- High PSRR: 71 dB at 1 kHz
- Internal soft-start to limit the turn-on inrush current
- Thermal shutdown and current limit protections
- Stable with a 1 μF ceramic output capacitor
- Active output discharge for fast turn-off
- Wettable flank package option available
- AEC-Q100 qualified and PPAP capable
- Pb-free, halogen-free/BFR-free, and RoHS compliant
Applications
- Advanced Driver Assistance Systems (ADAS)
- Infotainment & Cluster, and Telematics
- General Purpose Automotive & Industrial
- Building & Factory Automation
- Smart Meters
Q & A
- What is the operating input voltage range of the NCV8705?
The operating input voltage range is from 2.5 V to 5.5 V.
- What are the available voltage options for the NCV8705?
The NCV8705 is available in fixed voltage options from 0.8 V to 3.5 V and adjustable voltage options from 0.8 V to 5.5 V.
- What is the typical quiescent current of the NCV8705?
The typical quiescent current is 13 μA.
- What is the dropout voltage of the NCV8705 at 500 mA output current?
The dropout voltage is typically 230 mV at 500 mA output current.
- What is the power supply rejection ratio (PSRR) of the NCV8705 at 1 kHz?
The PSRR is 71 dB at 1 kHz.
- Does the NCV8705 have thermal shutdown protection?
Yes, the NCV8705 has thermal shutdown protection with a threshold temperature of 160°C.
- Is the NCV8705 AEC-Q100 qualified?
Yes, the NCV8705 is AEC-Q100 qualified and PPAP capable.
- What type of output capacitor is recommended for stability?
A 1 μF ceramic output capacitor is recommended for stability.
- Does the NCV8705 have an active output discharge feature?
Yes, the NCV8705 has an active output discharge feature for fast turn-off.
- Is the NCV8705 RoHS compliant?
Yes, the NCV8705 is Pb-free, halogen-free/BFR-free, and RoHS compliant.
