Overview
The NCP103AMX185TCG is a high-performance 150 mA Low Dropout Linear Regulator (LDO) produced by onsemi. This device is designed to provide a stable, accurate voltage with low noise, making it suitable for space-constrained, 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 | Typical Value | Min/Max Value | Unit |
|---|---|---|---|
| Operating Input Voltage Range | 1.7 V to 5.5 V | 1.7 / 5.5 | V |
| Output Voltage Options | 0.9 V to 3.5 V (fixed) | - | V |
| Quiescent Current | 50 μA | - | μA |
| Standby Current Consumption | 0.1 μA | - | μA |
| Dropout Voltage | 75 mV at 150 mA | - | mV |
| Output Voltage Accuracy | ±1% at Room Temperature | -40 / +40 mV for VOUT ≤ 2.0 V, -2 / +2% for VOUT > 2.0 V | mV / % |
| Power Supply Ripple Rejection Ratio (PSRR) | 75 dB at 1 kHz | - | dB |
| Thermal Shutdown Temperature | 160°C | - | °C |
| Thermal Shutdown Hysteresis | 20°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.
- High power supply ripple rejection ratio (PSRR) of 75 dB at 1 kHz.
- ±1% output voltage accuracy at room temperature.
- Thermal shutdown and current limit protections.
- Stable operation with a 1 μF ceramic output capacitor.
- Pb-free, halogen-free/BFR-free, and RoHS compliant.
- Active output discharge function in certain versions.
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 NCP103AMX185TCG? The operating input voltage range is from 1.7 V to 5.5 V.
- What are the available output voltage options for the NCP103? The NCP103 is available in fixed voltage options ranging from 0.9 V to 3.5 V.
- What is the typical quiescent current of the NCP103? The typical quiescent current is 50 μA.
- What is the dropout voltage of the NCP103 at 150 mA? The dropout voltage is typically 75 mV at 150 mA.
- What is the power supply ripple rejection ratio (PSRR) of the NCP103? The PSRR is 75 dB at 1 kHz.
- Does the NCP103 have thermal protection? Yes, it has thermal shutdown and current limit protections.
- What type of capacitor is recommended for the output of the NCP103? A 1 μF ceramic capacitor is recommended for stable operation.
- Is the NCP103 RoHS compliant? Yes, the NCP103 is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What are some typical applications of the NCP103? Typical applications include PDAs, mobile phones, GPS, smartphones, wireless handsets, and portable medical equipment.
- Does the NCP103 have an active output discharge function? Yes, certain versions of the NCP103 have an active output discharge function.
