Overview
The NCP115AMX180TCG 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.
The NCP115AMX180TCG offers a range of features that enhance its performance and reliability, including soft start, thermal shutdown, and current limit protections. It is available in XDFN4 and TSOP-5 packages, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Operating Input Voltage Range | 1.7 to 5.5 | V |
| Output Voltage (VOUT) | 1.8 | V |
| Output Current (IOUT) | 300 | mA |
| Quiescent Current (IQ) | 50 | μA |
| Standby Current Consumption | 0.1 | μA |
| Dropout Voltage (VDO) at 300 mA | 250 (XDFN4), 270 (TSOP-5) | mV |
| Output Voltage Accuracy at Room Temperature | ±1% | |
| Power Supply Ripple Rejection (PSRR) at 1 kHz | 70 dB | |
| Thermal Shutdown Threshold | 160°C | |
| Package Options | XDFN4, TSOP-5 |
Key Features
- Low Quiescent Current: Typical 50 μA, making it suitable for battery-operated devices.
- Soft Start Feature: Available with two VOUT slew rate speeds to prevent inrush current.
- High PSRR: 70 dB at 1 kHz, ensuring good noise rejection.
- Thermal Shutdown and Current Limit Protections: Prevents device failure due to overheating and overcurrent conditions.
- Active Discharge: Available in some versions, allowing the output to be quickly discharged to ground when the device is disabled.
- Stable with Small Output Capacitor: Stable operation with a 1 μF ceramic output capacitor.
- Pb-Free Devices: Compliant with lead-free requirements.
Applications
- PDAs, Mobile Phones, GPS, Smartphones: Ideal for portable electronic devices requiring stable and low-noise power supply.
- Wireless Handsets, Wireless LAN, Bluetooth®, Zigbee®: Suitable for various wireless communication devices.
- Portable Medical Equipment: Used in medical devices that require reliable and efficient power management.
- Other Battery-Powered Applications: General use in any battery-powered device needing a stable and efficient voltage regulator.
Q & A
- What is the typical quiescent current of the NCP115AMX180TCG?
The typical quiescent current is 50 μA.
- What is the operating input voltage range of the NCP115AMX180TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the output voltage accuracy of the NCP115AMX180TCG at room temperature?
The output voltage accuracy is ±1% at room temperature.
- Does the NCP115AMX180TCG 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 NCP115AMX180TCG?
The device is available in XDFN4 and TSOP-5 packages.
- What is the typical dropout voltage of the NCP115AMX180TCG at 300 mA?
The typical dropout voltage is 250 mV for the XDFN4 package and 270 mV for the TSOP-5 package.
- Does the NCP115AMX180TCG have an active discharge feature?
Yes, some versions of the device include an active discharge feature.
- What is the recommended output capacitor value for the NCP115AMX180TCG?
A minimum of 1 μF ceramic capacitor is recommended for stable operation.
- What are the typical applications of the NCP115AMX180TCG?
It is used in PDAs, mobile phones, GPS, smartphones, wireless handsets, and other battery-powered devices.
- How does the soft start feature work in the NCP115AMX180TCG?
The soft start feature prevents inrush current by controlling the VOUT slew rate, available in two speed options.
