Overview
The NCP114AMX160TCG 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 | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | 1.7 | - | 5.5 | V |
| Output Voltage (VOUT) | - | 1.6 | - | V |
| Output Current (IOUT) | - | 300 | - | mA |
| Low Dropout Voltage | - | 135 mV | - | mV |
| Quiescent Current (IQ) | - | 50 μA | - | μA |
| Power Supply Rejection Ratio (PSRR) at 1 kHz | - | 75 dB | - | dB |
| Output Voltage Accuracy | - | ±1% | - | % |
| Thermal Shutdown Temperature | - | 160°C | - | °C |
| Package Type | - | uDFN 1.0 x 1.0 mm | - | - |
Key Features
- Very low quiescent current of typical 50 μA, reducing power consumption in battery-operated devices.
- Low dropout voltage of 135 mV at 300 mA, ensuring efficient voltage regulation.
- High Power Supply Rejection Ratio (PSRR) of 75 dB at 1 kHz, providing excellent noise rejection.
- Thermal shutdown and current limit protections to prevent device failure due to overheating and overcurrent conditions.
- Active discharge function through the EN pin, allowing the output voltage to be pulled to GND when the device is disabled.
- Compact uDFN 1.0 x 1.0 mm package, suitable for space-constrained applications.
- Output voltage accuracy of ±1%, ensuring stable and reliable voltage output.
Applications
- Touchscreen controller supply
- Wireless modules
- Camera supply modules
- Microcontroller (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 NCP114AMX160TCG?
The typical quiescent current is 50 μA.
- What is the operating input voltage range of the NCP114AMX160TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical low dropout voltage of the NCP114AMX160TCG at 300 mA?
The typical low dropout voltage is 135 mV.
- What is the Power Supply Rejection Ratio (PSRR) of the NCP114AMX160TCG at 1 kHz?
The PSRR is 75 dB at 1 kHz.
- How does the thermal shutdown protection work in the NCP114AMX160TCG?
The device disables when the die temperature exceeds 160°C and re-enables when it drops below 140°C.
- What is the recommended input capacitor for the NCP114AMX160TCG?
A 1 μF Ceramic X5R or X7R capacitor is recommended.
- What is the output current limit of the NCP114AMX160TCG?
The output current is internally limited to a typical 600 mA.
- How does the enable function work on the NCP114AMX160TCG?
The device is enabled when the EN pin voltage is greater than 0.9 V and disabled when it is less than 0.4 V.
- What is the typical turn-on time for the NCP114AMX160TCG?
The typical turn-on time is 90 ms for VOUT = 1.2 V, COUT = 1 μF, IOUT = 1 mA, and TA = 25°C.
- What are the recommended PCB layout considerations for the NCP114AMX160TCG?
Place CIN and COUT capacitors close to the device pins and use wide PCB traces to minimize solution size.
