Overview
The NCP103AMX180TCG is a high-performance, low dropout linear regulator (LDO) produced by onsemi. This device is part of the NCP103 series, 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 | Symbol | Min. | Max. | Unit | |
|---|---|---|---|---|---|
| Operating Input Voltage | VIN | 1.7 | 5.5 | 5.5 | V |
| Output Voltage (Fixed Option) | VOUT | 0.9 | - | 3.5 | V |
| Output Voltage Accuracy (Room Temperature) | VOUT | - | ±1% | - | % |
| Quiescent Current | IQ | - | 50 μA | - | μA |
| Standby Current Consumption | - | - | 0.1 μA | - | μA |
| Dropout Voltage | VDROP | - | 75 mV | - | mV |
| Power Supply Ripple Rejection Ratio | PSRR | - | 75 dB | - | dB |
| Thermal Shutdown Temperature | TSD | - | 160°C | - | °C |
| Package Type | - | - | uDFN 1.0 x 1.0 mm | - | - |
Key Features
- Very low quiescent current of typically 50 μA and standby current consumption of typically 0.1 μA.
- Low dropout voltage of 75 mV at 150 mA output current.
- High power supply ripple rejection ratio (PSRR) of 75 dB at 1 kHz.
- Thermal shutdown and current limit protections for robust design.
- Stable operation with a 1 μF ceramic output capacitor.
- Active output discharge function in certain versions (e.g., NCP103AMXyyyTCG).
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
Applications
- PDAs, mobile phones, GPS, and smartphones.
- Wireless handsets, wireless LAN, Bluetooth®, and Zigbee® devices.
- Portable medical equipment.
- Other battery-powered applications.
Q & A
- What is the operating input voltage range of the NCP103AMX180TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical quiescent current of the NCP103AMX180TCG?
The typical quiescent current is 50 μA.
- What is the dropout voltage of the NCP103AMX180TCG at 150 mA output current?
The dropout voltage is typically 75 mV at 150 mA output current.
- What is the power supply ripple rejection ratio (PSRR) of the NCP103AMX180TCG?
The PSRR is 75 dB at 1 kHz.
- What are the thermal protection features of the NCP103AMX180TCG?
The device features thermal shutdown and current limit protections.
- What type of output capacitor is recommended for the NCP103AMX180TCG?
A 1 μF ceramic capacitor with X7R or X5R dielectric is recommended.
- Is the NCP103AMX180TCG RoHS compliant?
- What are some typical applications for the NCP103AMX180TCG?
Typical applications include PDAs, mobile phones, GPS, smartphones, wireless handsets, and portable medical equipment.
- How do you enable or disable the NCP103AMX180TCG regulator?
The regulator is enabled by driving the EN pin above 0.9 V and disabled by driving it below 0.4 V.
- What is the package type of the NCP103AMX180TCG?
The device is available in a uDFN 1.0 x 1.0 mm package.
