Overview
The NCP163AFCT280T2G, produced by onsemi, is a next-generation ultra-low noise, high PSRR (Power Supply Rejection Ratio) Linear Low Dropout (LDO) regulator. This device is designed to supply up to 250 mA of output current and is tailored to meet the stringent requirements of RF and sensitive analog circuits. It offers exceptional performance in terms of noise, PSRR, and load/line transients, making it ideal for a variety of applications including battery-powered equipment, wireless LAN devices, smartphones, tablets, and other portable electronics.
Key Specifications
| Parameter | Unit | Typical | Minimum | Maximum |
|---|---|---|---|---|
| Operating Input Voltage Range | V | - | 2.2 | 5.5 |
| Output Voltage Range | V | - | 1.2 | 5.3 |
| Output Current | mA | 250 | - | - |
| Quiescent Current | μA | 12 | - | - |
| Standby Current | μA | 0.1 | - | - |
| Dropout Voltage at 250 mA | mV | 80 | - | - |
| PSRR at 1 kHz | dB | 92 | - | - |
| Output Noise (10 Hz to 100 kHz) | μVRMS | 6.5 | - | - |
| Thermal Shutdown Threshold | °C | 160 (rising), 140 (falling) | - | - |
| Package Options | - | WLCSP4, XDFN4, SOT23-5L | - | - |
Key Features
- Ultra-low noise and high PSRR, making it suitable for RF and sensitive analog circuits.
- Low quiescent current of 12 μA and standby current of 0.1 μA.
- Very low dropout voltage of 80 mV at 250 mA.
- Excellent load and line transient response.
- Stable operation with small case size ceramic capacitors (1 μF).
- Available in ultra-small packages: WLCSP4, XDFN4, and industry-standard SOT23-5L.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
- Soft-start feature to prevent excessive input current during startup.
- Active discharge function to quickly discharge the output capacitor when disabled.
- Internal current limit and short-circuit protection.
Applications
- Battery-powered equipment.
- Wireless LAN devices.
- Smartphones and tablets.
- Cameras, DVRs, STBs, and camcorders.
- Other portable and battery-powered electronics requiring low noise and high PSRR.
Q & A
- What is the maximum output current of the NCP163AFCT280T2G?
The maximum output current is 250 mA.
- What is the operating input voltage range of the NCP163AFCT280T2G?
The operating input voltage range is from 2.2 V to 5.5 V.
- What are the typical quiescent and standby currents of the NCP163AFCT280T2G?
The typical quiescent current is 12 μA, and the standby current is 0.1 μA.
- What is the dropout voltage at 250 mA for the NCP163AFCT280T2G?
The dropout voltage at 250 mA is typically 80 mV.
- What is the PSRR at 1 kHz for the NCP163AFCT280T2G?
The PSRR at 1 kHz is typically 92 dB.
- What is the output noise of the NCP163AFCT280T2G over the frequency range of 10 Hz to 100 kHz?
The output noise is typically 6.5 μVRMS.
- What are the thermal shutdown thresholds for the NCP163AFCT280T2G?
The thermal shutdown thresholds are 160°C (rising) and 140°C (falling).
- What package options are available for the NCP163AFCT280T2G?
The device is available in WLCSP4, XDFN4, and SOT23-5L packages.
- Does the NCP163AFCT280T2G have built-in protection features?
Yes, it includes internal current limit, short-circuit protection, and thermal shutdown protection.
- How does the enable/disable function work on the NCP163AFCT280T2G?
The device can be enabled/disabled using the EN pin. When the EN pin voltage is below 0.4 V, the device is disabled, and when it is above 1.2 V, the device is enabled.
