Overview
The NCP115AMX120TCG is a 300 mA Low Dropout (LDO) regulator produced by onsemi. This device is designed to provide a 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 | Value | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.7 to 5.5 | V |
| Output Voltage (Fixed) | 1.2 | V |
| Output Current | 300 | mA |
| Quiescent Current (Typical) | 50 | μA |
| Standby Current Consumption (Typical) | 0.1 | μA |
| Low Dropout Voltage (Typical at 300 mA @ 2.8 V) | 250 | mV |
| Voltage Accuracy at Room Temperature | ±1% | |
| Power Supply Ripple Rejection (at 1 kHz) | 70 | dB |
| Thermal Shutdown Threshold (Typical) | 160 | °C |
| Package Options | XDFN4, TSOP-5 |
Key Features
- Soft Start feature with two VOUT slew rate speeds
- High Power Supply Ripple Rejection (PSRR) of 70 dB at 1 kHz
- Thermal Shutdown and Current Limit Protections
- Active Discharge function (available in NCP115A and NCP115C devices)
- Stable with a 1 μF Ceramic Output Capacitor
- Pb-Free devices
- Low noise output suitable for noise-sensitive applications
- Dynamic quiescent current adjustment for low power consumption at no-load
Applications
- PDAs, Mobile phones, GPS, Smartphones
- Wireless Handsets, Wireless LAN, Bluetooth®, Zigbee®
- Portable Medical Equipment
- Other Battery Powered Applications
Q & A
- What is the operating input voltage range of the NCP115AMX120TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical quiescent current of the NCP115AMX120TCG?
The typical quiescent current is 50 μA.
- What is the maximum output current of the NCP115AMX120TCG?
The maximum output current is 300 mA.
- What is the voltage accuracy of the NCP115AMX120TCG at room temperature?
The voltage accuracy is ±1% at room temperature.
- Does the NCP115AMX120TCG have thermal shutdown protection?
Yes, it has thermal shutdown protection with a typical threshold of 160°C.
- What are the package options available for the NCP115AMX120TCG?
The device is available in XDFN4 and TSOP-5 packages.
- Is the NCP115AMX120TCG suitable for noise-sensitive applications?
Yes, it is suitable for noise-sensitive applications due to its low noise output and high PSRR.
- What is the purpose of the soft start feature in the NCP115AMX120TCG?
The soft start feature helps in reducing the inrush current during startup and is available with two VOUT slew rate speeds.
- Does the NCP115AMX120TCG have active discharge functionality?
Yes, the active discharge function is available in NCP115A and NCP115C devices, which helps in quickly discharging the output capacitor when the device is disabled.
- What type of capacitors are recommended for input and output decoupling?
Ceramic X5R or X7R capacitors are recommended for both input and output decoupling due to their low ESR and ESL.
