Overview
The NCP114AMX300TCG is a high-performance 300 mA Low Dropout Linear Regulator (LDO) produced by 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 | 3.0 | V |
| Output Current | 300 mA | A |
| Low Dropout Voltage | 135 mV at 300 mA | V |
| PSRR at 1 kHz | 75 dB | dB |
| Quiescent Current | 50 µA | A |
| Output Voltage Accuracy | +/- 1% | % |
| Thermal Shutdown and Current Limit Protections | Yes | |
| Package Type | UDFN-4 (1.0 x 1.0 mm) |
Key Features
- High PSRR of 75 dB at 1 kHz for excellent noise rejection.
- Very low quiescent current of typically 50 µA to minimize power consumption.
- Low dropout voltage of 135 mV at 300 mA.
- Thermal shutdown and current limit protections for robust design.
- Active discharge function through the EN pin.
- Compact UDFN-4 package (1.0 x 1.0 mm) suitable for space-constrained applications.
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 NCP114AMX300TCG?
The typical output current is 300 mA.
- What is the operating input voltage range for this regulator?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the low dropout voltage at 300 mA?
The low dropout voltage is typically 135 mV at 300 mA.
- What is the PSRR at 1 kHz for this regulator?
The PSRR at 1 kHz is 75 dB.
- What is the quiescent current of the NCP114AMX300TCG?
The quiescent current is typically 50 µA.
- Does the NCP114AMX300TCG have thermal shutdown and current limit protections?
- What is the package type and size of the NCP114AMX300TCG?
The package type is UDFN-4, and the size is 1.0 x 1.0 mm.
- How does the active discharge function work on the NCP114AMX300TCG?
The active discharge function is controlled through the EN pin, which when set below 0.4 V, disables the device and pulls the output voltage to GND through a 100 Ω resistor.
- What are the recommended input and output capacitors for the NCP114AMX300TCG?
It is recommended to use 1 µF Ceramic X5R or X7R capacitors for both input and output decoupling.
- What are some common applications for the NCP114AMX300TCG?
Common applications include touchscreen controllers, wireless modules, camera supply modules, MCU and low power FPGA supply, smartphones, tablets, portable devices, wireless handsets, and IP cameras.
