Overview
The NCP163AMX280TBG, 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 dynamic response, making it ideal for battery-powered equipment and high-performance analog applications.
Key Specifications
| Parameter | Unit | Typical | Minimum | Maximum |
|---|---|---|---|---|
| Operating Input Voltage Range | V | - | 2.2 | 5.5 |
| Output Voltage Range (Fixed Options) | V | - | 1.2 | 5.3 |
| Output Voltage Accuracy | % | ±2% | - | - |
| Quiescent Current | μA | 12 | - | - |
| Standby Current | μA | 0.1 | - | - |
| Dropout Voltage at 250 mA | mV | 80 | - | - |
| PSRR at 1 kHz, 20 mA | dB | 92 | - | - |
| Output Noise (10 Hz to 100 kHz) | μVRMS | 6.5 | - | - |
| Thermal Shutdown Threshold (Rising/Falling) | °C | 160 / 140 | - | - |
| Output Current Limit | mA | 700 | - | - |
| 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.
- Stable operation with small case size ceramic capacitors (1 μF input and output).
- 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 feature to quickly discharge the output capacitor when the device is disabled.
- 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 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 fixed output voltage options available for the NCP163?
The fixed output voltage options range from 1.2 V to 5.3 V.
- What is the typical quiescent current of the NCP163?
The typical quiescent current is 12 μA.
- How much noise does the NCP163 produce at the output?
The output noise is typically 6.5 μVRMS over the frequency range of 10 Hz to 100 kHz.
- What is the PSRR of the NCP163 at 1 kHz and 20 mA?
The PSRR is typically 92 dB at 1 kHz and 20 mA.
- What are the package options available for the NCP163?
The NCP163 is available in WLCSP4, XDFN4, and SOT23-5L packages.
- Does the NCP163 have thermal shutdown protection?
Yes, the NCP163 has thermal shutdown protection with a threshold of 160°C rising and 140°C falling.
- What is the output current limit of the NCP163?
The output current is internally limited to a typical 700 mA.
- Does the NCP163 support soft-start and active discharge features?
Yes, the NCP163 supports soft-start to prevent excessive input current during startup and active discharge to quickly discharge the output capacitor when disabled.
