Overview
The NCP114BMX330TCG is a high-performance CMOS Low Dropout Linear Regulator produced by onsemi. This device is designed to deliver a stable and accurate output voltage with minimal noise, making it suitable for noise-sensitive applications. It features a very low quiescent current of typically 50 μA and a standby current consumption of typically 0.1 μA, which is ideal for battery-powered devices. The regulator also includes robust protection mechanisms such as output overload, short circuit, and thermal shutdown protection.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | - | 1.7 | 5.5 | V |
| Output Voltage (VOUT) | 3.3 | - | - | V |
| Output Current (IOUT) | - | - | 300 | mA |
| Quiescent Current (IQ) | 50 | - | - | μA |
| Standby Current | 0.1 | - | - | μA |
| Dropout Voltage (VDO) | 135 | - | - | mV @ 300 mA |
| Power Supply Rejection Ratio (PSRR) | >75 | - | - | dB @ 1 kHz |
| Thermal Shutdown Temperature (TSD) | 160 | - | - | °C |
| Package Type | - | - | - | 4-UDFN (1.0x1.0) |
Key Features
- Low Quiescent Current: Typically 50 μA, making it suitable for battery-powered applications.
- Low Dropout Voltage: 135 mV typical at 300 mA.
- High PSRR: Over 75 dB at 1 kHz.
- Robust Protection: Includes output overload, short circuit, and thermal shutdown protection.
- Enable Function: Allows for device enable/disable and active discharge control via the EN pin.
- Output Current Limitation: Internally limited to 600 mA typical.
- Input and Output Capacitor Recommendations: Requires at least 1 μF ceramic capacitors for both input and output to ensure stability and low noise.
Applications
- Battery-Powered Devices: Tablets, cellular phones, wireless devices, and other portable electronics.
- Noise-Sensitive Applications: Devices requiring low noise and high stability such as audio equipment and medical devices.
- Consumer Electronics: Smart home devices, IoT devices, and other consumer electronics requiring efficient power management.
Q & A
- What is the typical quiescent current of the NCP114BMX330TCG?
The typical quiescent current is 50 μA.
- What is the dropout voltage of the NCP114BMX330TCG at 300 mA?
The dropout voltage is typically 135 mV at 300 mA.
- What is the recommended input capacitor for the NCP114BMX330TCG?
A 1 μF ceramic capacitor (X5R or X7R) is recommended.
- How does the enable function work on the NCP114BMX330TCG?
The device can be enabled/disabled via the EN pin. If the EN pin voltage is <0.4 V, the device is disabled; if it is >0.9 V, the device is enabled.
- What is the thermal shutdown temperature of the NCP114BMX330TCG?
The thermal shutdown temperature is typically 160°C.
- What is the maximum output current of the NCP114BMX330TCG?
The maximum output current is internally limited to 600 mA typical.
- What type of package does the NCP114BMX330TCG come in?
The device comes in a 4-UDFN (1.0x1.0) package.
- What are some common applications for the NCP114BMX330TCG?
Common applications include battery-powered devices, noise-sensitive applications, and consumer electronics.
- How does the power supply rejection ratio (PSRR) of the NCP114BMX330TCG compare to other regulators?
The PSRR is over 75 dB at 1 kHz, which is very good compared to other regulators.
- What happens if the output voltage is directly shorted to ground?
The short circuit protection will limit the output current to 630 mA typical.
