Overview
The NCP161AFCT330T2G is a high-performance linear voltage regulator designed by onsemi, specifically tailored for RF and analog circuits. This device is capable of supplying up to 450 mA of output current and is known for its ultra-low noise, high power supply rejection ratio (PSRR), and low quiescent current. It is available in a compact 4-WLCSP (0.64 mm x 0.64 mm) package, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 1.9 | 5.5 | V | |
| Output Voltage | 3.3 | V | ||
| Output Current | 450 | mA | ||
| Output Voltage Accuracy | -2% | +2% | % | |
| Quiescent Current | 18 | 23 | μA | |
| Dropout Voltage (at 450 mA) | 190 | 315 | mV | |
| PSRR at 1 kHz | 98 | dB | ||
| Output Noise (10 Hz to 100 kHz) | 10 | μVRMS | ||
| Thermal Shutdown Threshold | 160 | °C |
Key Features
- Ultra-low noise: 10 μVRMS from 10 Hz to 100 kHz.
- High PSRR: Typically 98 dB at 1 kHz.
- Low quiescent current: Typically 18 μA.
- Very low dropout voltage: 190 mV at 450 mA for a 3.3 V output.
- Stable operation with small 1 μF ceramic capacitors.
- Compact packaging: Available in 4-WLCSP (0.64 mm x 0.64 mm) and other packages.
- Pb-free and RoHS compliant.
- Thermal shutdown and current limit protection.
Applications
- Battery-powered equipment.
- Wireless LAN devices.
- Smartphones and tablets.
- Cameras, DVRs, STBs, and camcorders.
Q & A
- What is the maximum output current of the NCP161AFCT330T2G? The maximum output current is 450 mA.
- What is the typical quiescent current of the NCP161AFCT330T2G? The typical quiescent current is 18 μA.
- What is the dropout voltage at 450 mA for a 3.3 V output? The dropout voltage is typically 190 mV at 450 mA for a 3.3 V output.
- What is the PSRR at 1 kHz for the NCP161AFCT330T2G? The PSRR at 1 kHz is typically 98 dB.
- What type of capacitors are recommended for stable operation? Small 1 μF ceramic capacitors are recommended for stable operation.
- Is the NCP161AFCT330T2G Pb-free and RoHS compliant? Yes, the device is Pb-free and RoHS compliant.
- What are the typical applications of the NCP161AFCT330T2G? Typical applications include battery-powered equipment, wireless LAN devices, smartphones, tablets, cameras, DVRs, STBs, and camcorders.
- What is the thermal shutdown threshold of the NCP161AFCT330T2G? The thermal shutdown threshold is 160 °C.
- How do you enable or disable the regulator? The regulator can be enabled by applying VEN > 1.2 V and disabled by applying VEN < 0.4 V.
- What is the output voltage noise of the NCP161AFCT330T2G? The output voltage noise is typically 10 μVRMS from 10 Hz to 100 kHz.
