Overview
The NCP114ASN120T1G 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 | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.7 to 5.5 | V |
| Output Voltage | 1.2 | V |
| Output Current | 300 | mA |
| Low Dropout Voltage | 135 mV at 300 mA | mV |
| Quiescent Current | 50 μA | μA |
| Power Supply Rejection Ratio (PSRR) | 75 dB at 1 kHz | dB |
| Output Voltage Accuracy | +/- 1% | % |
| Thermal Shutdown Threshold | 160°C typical | °C |
| Package Type | TSOP-5 |
Key Features
- Low Quiescent Current: Typical 50 μA, making it very suitable for battery-powered applications.
- High PSRR: Over 75 dB at 1 kHz, ensuring excellent dynamic performance and noise rejection.
- Thermal Shutdown and Current Limit Protections: Protects the device from overheating and output overload conditions.
- Low Dropout Voltage: 135 mV typical at 300 mA, ensuring efficient voltage regulation.
- Enable Function: Allows the device to be enabled or disabled via the EN pin, with an active discharge feature to quickly discharge the output capacitor when disabled.
- Compact Package: Available in a small TSOP-5 package, suitable for space-constrained designs.
Applications
- Touchscreen Controller Supply: Suitable for powering touchscreen controllers in various devices.
- Wireless Modules: Ideal for wireless modules and other communication components.
- Camera Supply Modules: Can be used to power camera modules in devices like smartphones and tablets.
- MCU and Low Power FPGA Supply: Suitable for powering microcontrollers and low-power FPGAs.
- Smartphones, Tablets, and Portable Devices: Commonly used in battery-operated portable devices due to its low power consumption and high efficiency).
- Wireless Handsets and IP Cameras: Also used in wireless handsets and IP cameras for reliable voltage regulation).
Q & A
- What is the typical quiescent current of the NCP114ASN120T1G?
The typical quiescent current is 50 μA.
- What is the operating input voltage range of the NCP114ASN120T1G?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the output voltage of the NCP114ASN120T1G?
The output voltage is 1.2 V.
- What is the maximum output current of the NCP114ASN120T1G?
The maximum output current is 300 mA.
- What is the typical dropout voltage of the NCP114ASN120T1G at 300 mA?
The typical dropout voltage is 135 mV at 300 mA.
- Does the NCP114ASN120T1G have thermal shutdown protection?
- How does the enable function work on the NCP114ASN120T1G?
The enable function allows the device to be enabled or disabled via the EN pin. 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 NCP114ASN120T1G available in?
The NCP114ASN120T1G is available in a TSOP-5 package.
- What are some common applications of the NCP114ASN120T1G?
- How does the power supply rejection ratio (PSRR) of the NCP114ASN120T1G contribute to its performance?
