Overview
The NCP114AMX270TCG is a high-performance 300 mA Low Dropout Linear Regulator (LDO) from onsemi. This device is designed to provide a very stable and accurate voltage output with low noise, making it suitable for space-constrained and 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 | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.7 to 5.5 | V |
| Output Voltage | 2.7 | V |
| Output Current | 300 | mA |
| Low Dropout Voltage | 135 mV at 300 mA | mV |
| PSRR at 1 kHz | 75 dB | dB |
| Quiescent Current | 50 µA | µA |
| Output Voltage Accuracy | +/- 1% | % |
| Package Type | UDFN-4 (1.0 x 1.0 mm) | |
| Thermal Shutdown and Current Limit Protections | Yes | |
| Enable Pin Voltage for Enable/Disable | >0.9 V / <0.4 V | V |
Key Features
- High PSRR of 75 dB at 1 kHz for excellent noise rejection.
- Very low quiescent current of typically 50 µA and standby current of 0.1 µA.
- Low dropout voltage of 135 mV at 300 mA.
- Thermal shutdown and current limit protections for robust design.
- Active discharge function through the enable pin.
- Compact UDFN-4 package (1.0 x 1.0 mm) suitable for space-constrained applications.
- Output voltage accuracy of +/- 1%.
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 output current of the NCP114AMX270TCG? The typical output current is 300 mA.
- What is the operating input voltage range of the NCP114AMX270TCG? The operating input voltage range is from 1.7 V to 5.5 V.
- What is the PSRR of the NCP114AMX270TCG at 1 kHz? The PSRR is 75 dB at 1 kHz.
- What is the quiescent current of the NCP114AMX270TCG? The quiescent current is typically 50 µA.
- What are the thermal protection features of the NCP114AMX270TCG? The device features thermal shutdown and current limit protections.
- How does the enable pin function on the NCP114AMX270TCG? The enable pin allows the device to be enabled/disabled and controls the active discharge function. The device is enabled when the EN pin voltage is >0.9 V and disabled when <0.4 V.
- What is the recommended input capacitor for the NCP114AMX270TCG? A 1 µF Ceramic X5R or X7R capacitor is recommended.
- What is the minimum effective capacitance required for the output capacitor? The minimum effective capacitance is 0.22 µF.
- What are the package dimensions of the NCP114AMX270TCG? The package is a UDFN-4 with dimensions of 1.0 x 1.0 mm.
- What are some common applications of the NCP114AMX270TCG? Common applications include touchscreen controller supply, wireless modules, camera supply modules, and supply for MCUs and low-power FPGAs.
