Overview
The NCP114AMX150TCG 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 | Typical Value | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.7 to 5.5 | V |
| Output Voltage | 1.5 | V |
| Output Current | 300 | mA |
| Low Dropout Voltage | 135 mV (at 300 mA) | mV |
| PSRR (Power Supply Rejection Ratio) | 75 dB at 1 kHz | dB |
| Quiescent Current | 50 µA (typical) | µA |
| Output Voltage Accuracy | +/- 1% (typical) | % |
| Package Type | UDFN-4 | - |
| Thermal Shutdown and Current Limit Protections | Yes | - |
| Enable/Disable Function | Yes | - |
Key Features
- High PSRR of 75 dB at 1 kHz, ensuring excellent noise rejection.
- Low dropout voltage of 135 mV at 300 mA, minimizing voltage loss.
- Very low quiescent current of 50 µA (typical), ideal for battery-powered devices.
- Thermal shutdown and current limit protections for robust design.
- Enable/disable function with active discharge capability.
- Compact UDFN-4 package, suitable for space-constrained applications.
- High output voltage accuracy of +/- 1% (typical).
Applications
- Touchscreen controller supply
- Wireless modules
- Camera supply modules
- MCU and low-power FPGA supply
- Smartphones and tablets
- Portable devices
- Wireless handsets
- IP Cameras
Q & A
- What is the typical output current of the NCP114AMX150TCG?
The typical output current is 300 mA.
- What is the operating input voltage range for this LDO?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the PSRR of the NCP114AMX150TCG at 1 kHz?
The PSRR is 75 dB at 1 kHz.
- Does the NCP114AMX150TCG have thermal shutdown and current limit protections?
Yes, it does.
- What is the typical quiescent current of the NCP114AMX150TCG?
The typical quiescent current is 50 µA.
- What is the package type of the NCP114AMX150TCG?
The package type is UDFN-4.
- Does the NCP114AMX150TCG have an enable/disable function?
Yes, it does, with an active discharge capability.
- What is the recommended input capacitor for the NCP114AMX150TCG?
A 1 mF Ceramic X5R or X7R capacitor is recommended.
- What is the minimum effective capacitance required for the output capacitor?
The minimum effective capacitance is 0.22 mF.
- Can tantalum capacitors be used on the output?
No, it is not recommended due to their high ESR and temperature dependency.
