Overview
The NCP114BSN330T1G is a high-performance, 300 mA Low Dropout Linear Regulator (LDO) produced by onsemi. This device is designed to deliver very high Power Supply Rejection Ratio (PSRR) of over 75 dB at 1 kHz and excellent dynamic performance during load and line transients. It features a very low quiescent current of typically 50 μA and a standby current consumption of typically 0.1 μA, making it highly suitable for battery-powered applications such as tablets, cellular phones, and wireless devices.
Key Specifications
| Parameter | Min | Typ | Max | 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 Consumption | - | 0.1 | - | μA |
| Dropout Voltage (VDO) | - | 135 | - | mV @ 300 mA |
| PSRR @ 1 kHz | - | 75 | - | dB |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Low Dropout Voltage: Typical 135 mV at 300 mA.
- High PSRR: Over 75 dB at 1 kHz.
- Low Quiescent Current: Typically 50 μA.
- Standby Current Consumption: Typically 0.1 μA.
- Enable/Disable Function: EN pin to enable/disable the device and activate/deactivate the active discharge function.
- Thermal Shutdown Protection: Disables the device when the die temperature exceeds 160°C (typical) and re-enables when it falls below 140°C (typical).
- Output Current Limitation and Short Circuit Protection: Internally limited to 600 mA (typical) and short circuit current limited to 630 mA (typical).
- Active Discharge Function: Pulls the output voltage to GND through a 100 Ω resistor when the device is disabled.
Applications
The NCP114BSN330T1G is suitable for various battery-powered applications, including:
- Tablets
- Cellular phones
- Wireless devices
- Other portable electronic devices requiring low power consumption and high efficiency.
Q & A
- What is the typical output voltage of the NCP114BSN330T1G?
The typical output voltage is 3.3 V.
- What is the maximum operating input voltage for the NCP114BSN330T1G?
The maximum operating input voltage is 5.5 V.
- What is the quiescent current of the NCP114BSN330T1G?
The quiescent current is typically 50 μA.
- Does the NCP114BSN330T1G have thermal shutdown protection?
- What is the recommended output capacitor value for the NCP114BSN330T1G?
The recommended output capacitor value is 1 μF with an X7R or X5R dielectric.
- Can the NCP114BSN330T1G be used in applications requiring high PSRR?
- How does the enable/disable function work on the NCP114BSN330T1G?
The EN pin is used to enable/disable the device and activate/deactivate the active discharge function. 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 output current limitation of the NCP114BSN330T1G?
The output current is internally limited to 600 mA (typical).
- Is the NCP114BSN330T1G protected against short circuits?
- What type of capacitors are recommended for input and output decoupling?
Ceramic capacitors with X7R or X5R dielectric are recommended due to their low ESR and ESL.
