Overview
The NCP167AMX180TBG is a linear voltage regulator produced by onsemi, designed to meet the stringent requirements of RF and analog circuits. This ultra-low noise, high PSRR (Power Supply Rejection Ratio) regulator is capable of supplying up to 700 mA of output current. It is particularly suited for battery-powered equipment, wireless LAN devices, smartphones, tablets, cameras, and other high-performance electronic devices. The NCP167AMX180TBG features low quiescent current, very low dropout voltage, and excellent dynamic response, making it an ideal choice for applications requiring high stability and low noise.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 1.9 | 5.5 | V | |
| Output Voltage | 1.8 | V | ||
| Output Current | 700 | mA | ||
| Output Voltage Accuracy | -2 | +2 | % | |
| Line Regulation | 0.02 | %/V | ||
| Load Regulation | 0.001 (WLCSP4), 0.002 (XDFN4) | %/mA | ||
| Dropout Voltage | 210 | mV @ 700 mA | ||
| PSRR (Power Supply Rejection Ratio) | 85 | dB @ 1 kHz, 20 mA | ||
| Noise (RMS) | 8.5 | μVRMS | ||
| Quiescent Current | 12 | μA | ||
| Standby Current | 0.1 | μA | ||
| Package Type | XDFN4, WLCSP4 |
Key Features
- Ultra-low noise and high PSRR, making it suitable for RF and analog circuits.
- Low quiescent current (typ. 12 μA) and standby current (typ. 0.1 μA).
- Very low dropout voltage (210 mV at 700 mA).
- High accuracy over load and temperature (±2%).
- Stable operation with small case size ceramic capacitors (1 μF).
- Active discharge function to quickly discharge the output capacitor when the regulator is disabled.
- Internal current limit and thermal shutdown for protection.
- Pb-free, halogen-free, and RoHS compliant.
- Available in ultra-small packages (XDFN4 and WLCSP4).
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 NCP167AMX180TBG?
The maximum output current is 700 mA.
- What is the operating input voltage range of the NCP167AMX180TBG?
The operating input voltage range is from 1.9 V to 5.5 V.
- What is the typical PSRR of the NCP167AMX180TBG at 1 kHz and 20 mA?
The typical PSRR is 85 dB at 1 kHz and 20 mA.
- What is the quiescent current of the NCP167AMX180TBG?
The typical quiescent current is 12 μA.
- What is the dropout voltage of the NCP167AMX180TBG at 700 mA?
The dropout voltage is typically 210 mV at 700 mA.
- How does the active discharge function work in the NCP167AMX180TBG?
The active discharge function quickly discharges the output capacitor to ground through a 280 Ω resistor when the regulator is disabled.
- What types 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.
- What are the package options available for the NCP167AMX180TBG?
The device is available in XDFN4 and WLCSP4 packages.
- Is the NCP167AMX180TBG RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant.
- What is the typical turn-on time for the NCP167AMX180TBG?
The turn-on time is dependent on various application conditions such as VOUT(NOM), COUT, and TA, but it is defined as the time from EN assertion to the point where VOUT reaches 98% of its nominal value.
