Overview
The NCP163ASN180T1G, 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 particularly suited for RF and sensitive analog circuits. It offers excellent load and line transient responses, making it ideal for applications requiring high stability and low noise.
The NCP163ASN180T1G operates within an input voltage range of 2.2 V to 5.5 V and is available in fixed voltage options ranging from 1.2 V to 5.3 V. It features a very low dropout voltage of 80 mV at 250 mA and ultra-low noise of 6.5 µVRMS. The device is available in various package options, including ultra-small WLCSP, XDFN4, and industry-standard SOT23-5L packages.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | 2.2 | 5.5 | V | |
| Output Voltage Accuracy | -2% | +2% | % | |
| Output Current (IOUT) | 250 | mA | ||
| Quiescent Current (IQ) | 12 | 20 | µA | |
| Shutdown Current (IDIS) | 0.01 | 1 | µA | |
| Dropout Voltage (VDROP) | 80 | mV @ 250 mA | ||
| Power Supply Rejection Ratio (PSRR) | 92 | dB @ 1 kHz, 20 mA | ||
| Output Noise (VN) | 6.5 | µVRMS | ||
| Thermal Shutdown Threshold (TSDH) | 160 | °C |
Key Features
- Ultra-low noise: 6.5 µVRMS, making it suitable for RF and sensitive analog circuits.
- High PSRR: Typically 92 dB at 1 kHz, ensuring good noise rejection.
- Low quiescent current: Typically 12 µA, ideal for battery-powered applications.
- Low dropout voltage: 80 mV at 250 mA, minimizing voltage loss.
- Excellent load and line transient responses.
- Available in ultra-small packages: WLCSP, 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.
- Thermal shutdown protection to prevent overheating.
Applications
- Battery-powered equipment.
- Wireless LAN devices.
- Smartphones and tablets.
- Cameras, DVRs, STBs, and camcorders.
- Any application requiring low noise and high PSRR.
Q & A
- What is the maximum output current of the NCP163ASN180T1G?
The maximum output current is 250 mA.
- What is the typical quiescent current of the NCP163ASN180T1G?
The typical quiescent current is 12 µA.
- What is the dropout voltage at 250 mA for the NCP163ASN180T1G?
The dropout voltage is typically 80 mV at 250 mA.
- What is the PSRR of the NCP163ASN180T1G at 1 kHz?
The PSRR is typically 92 dB at 1 kHz.
- What is the output noise of the NCP163ASN180T1G?
The output noise is typically 6.5 µVRMS.
- What are the package options available for the NCP163ASN180T1G?
The device is available in WLCSP, XDFN4, and SOT23-5L packages.
- Does the NCP163ASN180T1G have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold of 160°C.
- How does the enable/disable function work on the NCP163ASN180T1G?
The device is enabled when the EN pin voltage is above 1.2 V and disabled when it is below 0.4 V. In the disabled state, the output voltage is pulled to GND through a 280 Ω resistor.
- What is the recommended input and output capacitor value for the NCP163ASN180T1G?
The recommended value for both input and output capacitors is 1 µF, with X7R or X5R dielectric.
- Is the NCP163ASN180T1G RoHS compliant?
Yes, the device is Pb-free, halogen-free/BFR-free, and RoHS compliant.
