Overview
The NCP161AFCT300T2G is a high-performance linear low-dropout (LDO) regulator from onsemi, designed to meet the stringent requirements of RF and analog circuits. This device is capable of supplying up to 450 mA of output current and is distinguished by its ultra-low noise, high power supply rejection ratio (PSRR), and low quiescent current. The NCP161AFCT300T2G is available in a compact WLCSP-4 package, making it ideal for space-constrained applications such as battery-powered equipment, wireless LAN devices, smartphones, tablets, and various consumer electronics.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.9 to 5.5 | V |
| Output Voltage | Fixed: 3.0 | V |
| Output Current | Up to 450 | mA |
| Output Voltage Accuracy | ±2% | % |
| Quiescent Current | 18 μA | μA |
| Dropout Voltage at 450 mA | 190 mV (VOUT = 3.0 V) | mV |
| PSRR at 1 kHz | 98 dB | dB |
| Output Noise (10 Hz to 100 kHz) | 10 μVRMS | μVRMS |
| Package Type | WLCSP-4 (0.64 mm x 0.64 mm x 0.4 mm) | - |
| Maximum Junction Temperature | 150 °C | °C |
Key Features
- Ultra-low noise: 10 μVRMS (10 Hz to 100 kHz)
- High PSRR: 98 dB at 1 kHz
- Low quiescent current: 18 μA typical
- Low dropout voltage: 190 mV at 450 mA (VOUT = 3.0 V)
- Stable operation with small 1 μF ceramic capacitors
- Compact WLCSP-4 package for space-constrained designs
- Pb-free and RoHS compliant
- Integrated soft-start and current limit
- Thermal shutdown and active output discharge
Applications
- Battery-powered equipment
- Wireless LAN devices
- Smartphones and tablets
- Cameras, DVRs, set-top boxes, and camcorders
Q & A
- What is the maximum output current of the NCP161AFCT300T2G?
The NCP161AFCT300T2G can supply up to 450 mA of output current. - What is the typical quiescent current of the NCP161AFCT300T2G?
The typical quiescent current is 18 μA. - What is the PSRR of the NCP161AFCT300T2G at 1 kHz?
The PSRR at 1 kHz is typically 98 dB. - What is the output voltage noise of the NCP161AFCT300T2G?
The output voltage noise is 10 μVRMS over the frequency range of 10 Hz to 100 kHz. - What package types are available for the NCP161AFCT300T2G?
The NCP161AFCT300T2G is available in a WLCSP-4 package (0.64 mm x 0.64 mm x 0.4 mm). - Is the NCP161AFCT300T2G Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant. - What are the typical applications of the NCP161AFCT300T2G?
Typical applications include battery-powered equipment, wireless LAN devices, smartphones, tablets, cameras, DVRs, set-top boxes, and camcorders. - What is the maximum junction temperature for the NCP161AFCT300T2G?
The maximum junction temperature is 150 °C. - Does the NCP161AFCT300T2G have integrated protection features?
Yes, it includes features such as thermal shutdown and active output discharge. - How do I enable or disable the NCP161AFCT300T2G?
The regulator can be enabled by pulling the EN pin above 1.2 V and disabled by pulling it below 0.4 V.
