Overview
The NCP103AMX105TCG is a 150 mA Low Dropout (LDO) linear 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 | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Input Voltage | 1.7 | 5.5 | V | |
| Output Voltage (Fixed Option) | 1.05 | V | ||
| Quiescent Current | 50 | μA | ||
| Standby Current Consumption | 0.1 | μA | ||
| Dropout Voltage | 75 | mV @ 150 mA | ||
| Output Voltage Accuracy | ±2 | % | ||
| Power Supply Ripple Rejection (PSRR) | 75 | dB @ 1 kHz | ||
| Thermal Shutdown Temperature | 160 | °C | ||
| Thermal Shutdown Hysteresis | 20 | °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.
- High power supply ripple rejection (PSRR) of 75 dB at 1 kHz.
- ±1% output voltage accuracy at room temperature.
- Thermal shutdown and current limit protections for robust design.
- Stable operation with a 1 μF ceramic output capacitor.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
- Dynamic quiescent current adjustment for low power consumption at no-load.
- Enable pin for turning the regulator on or off.
Applications
- PDAs, mobile phones, GPS, and smartphones.
- Wireless handsets, wireless LAN, Bluetooth®, and Zigbee® devices.
- Portable medical equipment.
- Other battery-powered applications such as tablets and cellular phones.
Q & A
- What is the operating input voltage range of the NCP103AMX105TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What is the typical quiescent current of the NCP103AMX105TCG?
The typical quiescent current is 50 μA.
- What is the dropout voltage at 150 mA for the NCP103AMX105TCG?
The dropout voltage is typically 75 mV at 150 mA.
- What is the power supply ripple rejection ratio (PSRR) at 1 kHz?
The PSRR is 75 dB at 1 kHz.
- What is the thermal shutdown temperature of the NCP103AMX105TCG?
The thermal shutdown temperature is 160°C.
- What type of package is the NCP103AMX105TCG available in?
The device is available in a uDFN 1.0 x 1.0 mm package.
- Is the NCP103AMX105TCG RoHS compliant?
- How do you enable or disable the NCP103AMX105TCG?
The device can be enabled by driving the EN pin above 0.9 V and disabled by driving it below 0.4 V.
- What is the recommended output capacitor value for the NCP103AMX105TCG?
The recommended output capacitor value is 1 μF with an X7R or X5R dielectric.
- What are some typical applications for the NCP103AMX105TCG?
Typical applications include PDAs, mobile phones, GPS, smartphones, wireless handsets, and portable medical equipment.
