Overview
The NCP163AFCS180T2G, produced by onsemi, is a next-generation low dropout (LDO) regulator designed to meet the stringent requirements of RF and sensitive analog circuits. This ultra-low noise LDO is capable of supplying up to 250 mA of output current and is optimized for use in battery-powered equipment, wireless LAN devices, smartphones, tablets, cameras, DVRs, STBs, and camcorders. The device features high power supply rejection ratio (PSRR), low quiescent current, and excellent load and line transient responses, making it ideal for high-performance applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 2.2 | - | 5.5 | V |
| Output Voltage Range | 1.2 | - | 5.3 | V |
| Output Voltage Accuracy | -2% | - | +2% | % |
| Quiescent Current | - | 12 μA | - | μA |
| Standby Current | - | 0.1 μA | - | μA |
| Dropout Voltage | - | 80 mV @ 250 mA | - | mV |
| PSRR | - | 92 dB @ 1 kHz, 20 mA | - | dB |
| Output Noise | - | 6.5 μVRMS | - | μVRMS |
| Thermal Shutdown Threshold | - | 160°C | - | °C |
| 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 responses.
- 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 the device is disabled.
- Thermal shutdown protection to prevent catastrophic device failure due to overheating.
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 NCP163AFCS180T2G?
The maximum output current is 250 mA.
- What is the operating input voltage range of the NCP163AFCS180T2G?
The operating input voltage range is from 2.2 V to 5.5 V.
- What is the typical quiescent current of the NCP163AFCS180T2G?
The typical quiescent current is 12 μA.
- What is the dropout voltage at 250 mA for the NCP163AFCS180T2G?
The dropout voltage at 250 mA is 80 mV.
- What is the PSRR of the NCP163AFCS180T2G at 1 kHz and 20 mA?
The PSRR is typically 92 dB at 1 kHz and 20 mA.
- What is the output noise of the NCP163AFCS180T2G?
The output noise is typically 6.5 μVRMS.
- What are the package options available for the NCP163AFCS180T2G?
The device is available in WLCSP4, XDFN4, and SOT23-5L packages.
- Does the NCP163AFCS180T2G have thermal shutdown protection?
Yes, the device has thermal shutdown protection that disables the LDO when the die temperature exceeds 160°C and re-enables it when the temperature falls below 140°C.
- How does the enable/disable function work on the NCP163AFCS180T2G?
The device can be enabled by setting the EN pin voltage above 1.2 V and disabled by setting it below 0.4 V. In the disabled state, the output voltage is actively discharged to ground through a 280 Ω resistor.
- What type of capacitors are recommended for input and output decoupling?
X7R or X5R ceramic capacitors are recommended for both input and output decoupling due to their low ESR and ESL.
