Overview
The NCP114ASN250T2G is a high-performance, low dropout linear voltage regulator (LDO) produced by onsemi. This device is designed to deliver high current with very low quiescent current, making it highly suitable for battery-powered applications. The NCP114ASN250T2G features excellent dynamic performance, high power supply rejection ratio (PSRR), and robust protection mechanisms such as thermal shutdown, output current limit, and short circuit protection.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage (VIN) | 1.7 | - | 5.5 | V |
| Output Voltage (VOUT) | - | 2.5 | - | V |
| Output Current (IOUT) | - | 300 | - | mA |
| Quiescent Current (IQ) | - | 50 | - | μA |
| Dropout Voltage (VDO) | - | 135 | - | mV @ 300 mA |
| Power Supply Rejection Ratio (PSRR) | - | 75 dB @ 1 kHz | - | - |
| Thermal Shutdown Temperature (TSD) | - | 160°C | - | °C |
| Package Type | - | TSOP-5 | - | - |
Key Features
- Low Quiescent Current: Typical quiescent current of 50 μA, making it suitable for battery-powered applications.
- High PSRR: Excellent power supply rejection ratio of over 75 dB at 1 kHz.
- Low Dropout Voltage: Typical dropout voltage of 135 mV at 300 mA.
- Thermal Protection: Thermal shutdown feature to prevent catastrophic device failure due to overheating.
- Output Current Limit and Short Circuit Protection: Internally limited output current and short circuit protection to ensure robust operation.
- Active Discharge Feature: Enables safe shutdown and restart by pulling the output voltage to ground through a 100 Ω resistor when the device is disabled.
- Enable/Disable Function: EN pin allows for device enable/disable and active discharge control.
Applications
The NCP114ASN250T2G is ideal for various battery-powered applications, including:
- Tablets and cellular phones
- Wireless devices
- Other portable electronic devices requiring efficient power management.
Q & A
- What is the typical quiescent current of the NCP114ASN250T2G?
The typical quiescent current is 50 μA.
- What is the maximum output current of the NCP114ASN250T2G?
The maximum output current is 300 mA.
- What is the dropout voltage of the NCP114ASN250T2G at 300 mA?
The typical dropout voltage is 135 mV at 300 mA.
- What is the power supply rejection ratio (PSRR) of the NCP114ASN250T2G?
The PSRR is over 75 dB at 1 kHz.
- Does the NCP114ASN250T2G have thermal protection?
- How does the active discharge feature work?
The active discharge feature pulls the output voltage to ground through a 100 Ω resistor when the device is disabled.
- What is the purpose of the EN pin?
The EN pin allows for device enable/disable and control of the active discharge function.
- What type of capacitors are recommended for input and output decoupling?
Ceramic X5R or X7R capacitors are recommended for both input and output decoupling.
- What is the package type of the NCP114ASN250T2G?
The package type is TSOP-5.
- What are some common applications for the NCP114ASN250T2G?
Common applications include tablets, cellular phones, wireless devices, and other portable electronic devices.
