Overview
The NCP114AMX120TBG 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) | 1.2 | - | - | 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-4 (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 75 dB at 1 kHz, ensuring good noise rejection.
- Low Dropout Voltage: Typical dropout voltage of 135 mV at 300 mA.
- Thermal and Current Protections: Thermal shutdown and current limit protections to prevent device failure.
- Enable Function: EN pin to enable/disable the device and activate/deactivate the active discharge function.
- Compact Package: Available in a small UDFN-4 package (1.0 x 1.0 mm).
- Output Decoupling: Requires an output capacitor for stability, with recommended values and types specified.
Applications
- Tablets and smartphones
- Wireless modules and handsets
- Camera supply modules
- MCU and low-power FPGA supply
- Portable devices
- IP Cameras
- Touchscreen controllers
Q & A
- What is the typical quiescent current of the NCP114AMX120TBG?
The typical quiescent current is 50 μA.
- What is the operating input voltage range for the NCP114AMX120TBG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical output voltage accuracy of the NCP114AMX120TBG?
The typical output voltage accuracy is +/- 1%.
- What is the Power Supply Rejection Ratio (PSRR) of the NCP114AMX120TBG at 1 kHz?
The PSRR is 75 dB at 1 kHz.
- What is the thermal shutdown threshold for the NCP114AMX120TBG?
The thermal shutdown threshold is typically 160°C.
- How does the enable function work on the NCP114AMX120TBG?
The EN pin can be used to enable or disable the device. When the EN pin voltage is below 0.4 V, the device is disabled, and when it is above 0.9 V, the device is enabled.
- What type of package is the NCP114AMX120TBG available in?
The device is available in a UDFN-4 package (1.0 x 1.0 mm).
- What are the recommended capacitor values for input and output decoupling?
The recommended capacitor values are 1 μF for both input and output, with X5R or X7R dielectric.
- What is the maximum output current limit for the NCP114AMX120TBG?
The maximum output current limit is typically 600 mA.
- Does the NCP114AMX120TBG have short circuit protection?
