Overview
The NCP170AXV190T2G is a part of the NCP170 series of CMOS low dropout regulators (LDOs) designed by onsemi. These regulators are specifically tailored for portable battery-powered applications that demand ultra-low quiescent current. The NCP170AXV190T2G ensures long battery life due to its ultra-low quiescent current of typically 0.5 µA. It also features a dynamic transient boost, which enhances device transient response, particularly beneficial for wireless communication applications.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Operating Input Voltage | - | 2.2 | 5.5 | V |
| Output Voltage | 1.9 | 1.862 | 1.938 | V |
| Output Current | - | - | 150 | mA |
| Quiescent Current | 0.5 | - | 0.9 | µA |
| Dropout Voltage | - | - | 170-240 | mV |
| Line Regulation | 0.05 | - | 0.20 | %/V |
| Load Regulation | 1 | -20 | 20 | mV |
| Power Supply Rejection Ratio (PSRR) | 30 | - | - | dB |
| Maximum Junction Temperature | - | - | 150 | °C |
| Storage Temperature | - | -55 | 150 | °C |
Key Features
- Ultra-low quiescent current of typically 0.5 µA, ensuring long battery life.
- Low dropout voltage of typically 170 mV at 150 mA.
- High output voltage accuracy of ±1%.
- Stable operation with ceramic capacitors as small as 1 µF.
- Over-current protection and thermal shutdown protection for enhanced reliability.
- Dynamic transient boost feature for improved transient response in wireless communication applications.
- Chip enable pin (Active “H”) for easy control.
- Available in small packages: 1 × 1 mm XDFN4, SOT-563, and TSOP-5.
Applications
The NCP170AXV190T2G is ideal for various portable battery-powered applications, including:
- Wireless communication devices such as smartphones, tablets, and IoT devices.
- Portable electronics like handheld games, GPS devices, and digital cameras.
- Battery-powered sensors and monitoring systems.
- Low-power microcontroller and microprocessor systems.
Q & A
- What is the typical quiescent current of the NCP170AXV190T2G?
The typical quiescent current is 0.5 µA.
- What is the output voltage range of the NCP170 series?
The output voltage range is from 1.2 V to 3.6 V in 0.1 V steps.
- What is the maximum output current of the NCP170AXV190T2G?
The maximum output current is 150 mA.
- What type of packages is the NCP170AXV190T2G available in?
The device is available in 1 × 1 mm XDFN4, SOT-563, and TSOP-5 packages.
- Does the NCP170AXV190T2G have over-current protection?
- What is the dropout voltage of the NCP170AXV190T2G at 150 mA?
The dropout voltage is typically between 170-240 mV at 150 mA.
- How does the dynamic transient boost feature benefit the device?
The dynamic transient boost feature improves the device's transient response, which is particularly beneficial for wireless communication applications.
- What is the power supply rejection ratio (PSRR) of the NCP170AXV190T2G?
The PSRR is typically 30 dB.
- What is the maximum junction temperature for the NCP170AXV190T2G?
The maximum junction temperature is 150°C.
- Is the NCP170AXV190T2G stable with ceramic capacitors?
