Overview
The NCP114AMX280TBG is a high-performance 300 mA Low Dropout Linear Regulator (LDO) produced by onsemi. This device is designed to provide a very stable, accurate voltage with low noise, making it suitable for space-constrained, noise-sensitive applications. It is particularly optimized for battery-operated portable devices, featuring dynamic quiescent current adjustment to minimize power consumption at no-load conditions.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | - | 1.7 | 5.5 | V |
| Output Voltage (VOUT) | 2.8 | - | - | V |
| Output Current (IOUT) | 300 | - | - | mA |
| Low Dropout Voltage | 135 mV | - | - | mV |
| Quiescent Current (IQ) | 50 μA | - | - | μA |
| Power Supply Rejection Ratio (PSRR) | 75 dB at 1 kHz | - | - | dB |
| Output Voltage Accuracy | ±1% | - | - | % |
| Thermal Shutdown Threshold | 160°C (typ) | - | - | °C |
| Package Type | uDFN 1.0 x 1.0 mm | - | - | - |
Key Features
- Low Quiescent Current: Typical quiescent current of 50 μA, making it suitable for battery-powered applications.
- High PSRR: Power Supply Rejection Ratio of over 75 dB at 1 kHz, ensuring excellent dynamic performance.
- Low Dropout Voltage: Typical dropout voltage of 135 mV at 300 mA.
- Thermal and Current Protections: Features thermal shutdown and current limit protections to prevent device failure.
- Enable Function: The EN pin allows for device enable/disable and active discharge function.
- Compact Package: Available in a small uDFN 1.0 x 1.0 mm package, ideal for space-constrained designs.
- Output Decoupling: Requires an output capacitor for stability, with recommended values and types specified.
Applications
- Touchscreen Controller Supply
- Wireless Modules
- Camera Supply Modules
- MCU and Low Power FPGA Supply
- Smartphones and Tablets
- Portable Devices
- Wireless Handsets
- IP Cameras
Q & A
- What is the typical quiescent current of the NCP114AMX280TBG?
The typical quiescent current is 50 μA.
- What is the operating input voltage range for the NCP114AMX280TBG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical dropout voltage of the NCP114AMX280TBG at 300 mA?
The typical dropout voltage is 135 mV at 300 mA.
- What is the Power Supply Rejection Ratio (PSRR) of the NCP114AMX280TBG?
The PSRR is over 75 dB at 1 kHz.
- Does the NCP114AMX280TBG have thermal protection?
Yes, it features thermal shutdown protection with a typical threshold of 160°C.
- How does the enable function work on the NCP114AMX280TBG?
The EN pin allows for device enable/disable and active discharge function. If the EN pin voltage is <0.4 V, the device is disabled, and if it is >0.9 V, the device is enabled.
- What type of package is the NCP114AMX280TBG available in?
The device is available in a uDFN 1.0 x 1.0 mm package.
- What are the recommended capacitor values for input and output decoupling?
Recommended values are 1 μF for both input and output capacitors, with X5R or X7R dielectric.
- Does the NCP114AMX280TBG have current limit protection?
Yes, the device has internal current limit protection, limiting the output current to typically 600 mA.
- What are some common applications for the NCP114AMX280TBG?
Common applications include touchscreen controllers, wireless modules, camera supply modules, MCU and low power FPGA supply, smartphones, tablets, and other portable devices.
