Overview
The NCP103AMX250TCG is a high-performance, low dropout linear regulator (LDO) produced by onsemi. This 150 mA LDO is designed to provide a stable, 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 | V |
| Output Voltage Accuracy (TJ = 25°C) | VOUT | -40 | - | 40 | mV (for VOUT ≤ 2.0 V) |
| Output Voltage Accuracy (TJ = 25°C) | VOUT | -2 | - | 2 | % (for VOUT > 2.0 V) |
| Line Regulation | RegLINE | 0.01 | 0.1 | - | %/V |
| Load Regulation | RegLOAD | 10 | 30 | - | mV |
| Dropout Voltage (IOUT = 150 mA) | VDO | 75 | - | 125 | mV (for VOUT = 2.8 V) |
| Output Current Limit | ICL | 150 | - | 550 | mA |
| Quiescent Current (IOUT = 0 mA) | IQ | 50 | - | 95 | μA |
| Shutdown Current (VEN ≤ 0.4 V, VIN = 5.5 V) | IDIS | 0.01 | - | 1 | μA |
| EN Pin Threshold Voltage | VEN_HI / VEN_LO | 0.9 / 0.4 | - | - | V |
| Power Supply Rejection Ratio (PSRR) at 1 kHz | PSRR | - | 75 | - | dB |
| Output Noise Voltage (10 Hz to 100 kHz) | VN | - | 60 | - | μVrms |
| Thermal Shutdown Temperature | TSD | - | 160 | - | °C |
Key Features
- Operating Input Voltage Range: 1.7 V to 5.5 V
- Available in Fixed Voltage Options: 0.9 V to 3.5 V (contact factory for other voltage options)
- Very Low Quiescent Current: Typical 50 μA
- Standby Current Consumption: Typical 0.1 μA
- Low Dropout Voltage: 75 mV Typical at 150 mA
- High Accuracy: ±1% at Room Temperature
- High Power Supply Ripple Rejection: 75 dB at 1 kHz
- Thermal Shutdown and Current Limit Protections
- Stable with a 1 μF Ceramic Output Capacitor
- Available in uDFN 1.0 x 1.0 mm Package
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant
Applications
- PDAs, Mobile Phones, GPS, Smartphones
- Wireless Handsets, Wireless LAN, Bluetooth®, Zigbee®
- Portable Medical Equipment
- Other Battery Powered Applications such as Tablets and Cellular Phones
Q & A
- What is the operating input voltage range of the NCP103AMX250TCG?
The operating input voltage range is from 1.7 V to 5.5 V.
- What are the available fixed voltage options for the NCP103AMX250TCG?
The device is available in fixed voltage options ranging from 0.9 V to 3.5 V. Other voltage options are available upon contacting the factory.
- What is the typical quiescent current of the NCP103AMX250TCG?
The typical quiescent current is 50 μA.
- What is the dropout voltage at 150 mA output current for the NCP103AMX250TCG?
The dropout voltage is typically 75 mV at 150 mA output current for a 2.8 V output voltage.
- Does the NCP103AMX250TCG have thermal shutdown protection?
- What is the power supply ripple rejection ratio (PSRR) of the NCP103AMX250TCG at 1 kHz?
The PSRR is 75 dB at 1 kHz.
- What type of package is the NCP103AMX250TCG available in?
The device is available in a uDFN 1.0 x 1.0 mm package.
- Is the NCP103AMX250TCG RoHS compliant?
- What is the recommended output capacitor for the NCP103AMX250TCG?
A 1 μF ceramic output capacitor is recommended for stability.
- What are some typical applications for the NCP103AMX250TCG?
