Overview
The NCP163AFCT300T2G, produced by onsemi, is a next-generation low dropout (LDO) regulator designed to meet the stringent requirements of RF and sensitive analog circuits. This device is capable of supplying up to 250 mA of output current and is distinguished by its ultra-low noise, high power supply rejection ratio (PSRR), and low quiescent current. The NCP163 is available in various ultra-small packages, including WLCSP and XDFN, making it suitable for space-constrained applications.
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 | - | - |
| Output Voltage Accuracy | % | ±2% | - | - |
| 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 | - | - |
| 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 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.
Q & A
- What is the maximum output current of the NCP163?
The NCP163 can supply up to 250 mA of output current.
- What is the operating input voltage range of the NCP163?
The operating input voltage range is from 2.2 V to 5.5 V.
- What are the key features of the NCP163 in terms of noise and PSRR?
The NCP163 features ultra-low noise (6.5 μVRMS) and high PSRR (92 dB at 1 kHz).
- What types of packages are available for the NCP163?
The NCP163 is available in WLCSP4, XDFN4, and SOT23-5L packages.
- How does the NCP163 handle thermal protection?
The device includes thermal shutdown protection with a threshold of 160°C.
- What is the quiescent current of the NCP163?
The quiescent current is typically 12 μA.
- Does the NCP163 have built-in current limit and short circuit protection?
Yes, the NCP163 has internal current limit and short circuit protection.
- How does the active discharge function work in the NCP163?
The active discharge function pulls the output voltage to ground through a 280 Ω resistor when the device is disabled.
- What is the purpose of the soft-start feature in the NCP163?
The soft-start feature ensures smooth and monotonous output voltage rising to prevent excessive input current during startup.
- Is the NCP163 compliant with environmental regulations?
Yes, the NCP163 is Pb-free, halogen-free/BFR-free, and RoHS compliant.
