Overview
The NCP161AMX180TBG is a linear regulator produced by onsemi, designed to meet the stringent requirements of RF and analog circuits. This device is capable of supplying up to 450 mA of output current and is distinguished by its ultra-low noise, high Power Supply Rejection Ratio (PSRR), and low quiescent current. It operates with a 1 µF input and a 1 µF output ceramic capacitor, ensuring stable performance across various conditions. The NCP161AMX180TBG is available in several compact package options, including ultra-small Chip Scale Package (CSP) and XDFN4, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 1.9 | 5.5 | V | |
| Output Voltage Range | 1.8 | 5.14 | V | |
| Output Current | 450 | mA | ||
| Output Voltage Accuracy | -2% | +2% | % | |
| Quiescent Current | 18 | 23 | µA | |
| Dropout Voltage (at 450 mA) | 150 | 480 | mV | |
| PSRR (at 1 kHz, 20 mA) | 98 | dB | ||
| Output Noise (10 Hz to 100 kHz) | 10 | µVRMS | ||
| Thermal Shutdown Threshold | 160 | °C | ||
| Package Options | WLCSP4, XDFN4, SOT23-5 |
Key Features
- Ultra-low noise: 10 µVRMS from 10 Hz to 100 kHz.
- High PSRR: Typically 98 dB at 1 kHz.
- Low quiescent current: Typically 18 µA.
- Low dropout voltage: 150 mV at 450 mA.
- Good load and line transients.
- Stable operation with 1 µF ceramic input and output capacitors.
- Compact package options: WLCSP4, XDFN4, and SOT23-5.
- Pb-free and RoHS compliant.
Applications
The NCP161AMX180TBG is ideal for applications requiring low noise and high stability, such as RF and analog circuits. It is particularly suited for use in:
- Wireless communication devices.
- Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
- Audio and video equipment.
- Medical devices requiring low noise power supplies.
- Industrial control systems.
Q & A
- What is the maximum output current of the NCP161AMX180TBG?
The maximum output current is 450 mA. - What is the typical quiescent current of the NCP161AMX180TBG?
The typical quiescent current is 18 µA. - What is the dropout voltage at 450 mA output current?
The dropout voltage ranges from 150 mV to 480 mV depending on the output voltage. - What are the package options available for the NCP161AMX180TBG?
The device is available in WLCSP4, XDFN4, and SOT23-5 packages. - Is the NCP161AMX180TBG Pb-free and RoHS compliant?
Yes, the device is Pb-free and RoHS compliant. - What is the typical PSRR at 1 kHz?
The typical PSRR at 1 kHz is 98 dB. - What is the output voltage noise from 10 Hz to 100 kHz?
The output voltage noise is typically 10 µVRMS. - What are the thermal shutdown thresholds for the NCP161AMX180TBG?
The thermal shutdown thresholds are 160°C rising and 140°C falling. - How do I enable or disable the regulator?
The regulator can be enabled by applying a voltage greater than 1.2 V to the EN pin and disabled by applying a voltage less than 0.4 V. - What are the recommended input and output capacitors for stable operation?
The device is designed to work with 1 µF ceramic input and output capacitors.
