Overview
The MC78LC18NTRG is a part of the MC78LC00 series of fixed output low dropout linear regulators produced by onsemi. These regulators are designed for handheld communication equipment and portable battery-powered applications that require low quiescent current. The MC78LC18NTRG features an ultra-low quiescent current of 1.1 µA, making it highly efficient for power-sensitive applications. The device is housed in the micro-miniature Thin SOT23-5 surface mount package, ensuring compact design and ease of integration.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TA = 25°C, Iout = 1.0 mA) | Vout | 1.455 | 1.746 | 1.854 | V |
| Line Regulation (Vin = VO(nom.) + 1.0 V to 12 V, Iout = 1.0 mA) | Regline | -0.05 | 0.2 | %/V | |
| Load Regulation (Iout = 1.0 mA to 10 mA) | Regload | -40 | 60 | mV | |
| Output Current (Vin = 4.0 V) | Iout | 35 | 50 | mA | |
| Dropout Voltage (Iout = 1.0 mA, Measured at Vout - 3.0%) | Vin-Vout | 35 | 30 | mV | |
| Quiescent Current (Iout = 1.0 mA to IO(nom.)) | IQ | 1.1 | 3.6 | µA | |
| Output Voltage Temperature Coefficient | Tc | -100 | - | ppm/°C | |
| Output Noise Voltage (f = 1.0 kHz to 100 kHz) | Vn | 89 | - | µVrms |
Key Features
- Ultra-low quiescent current of 1.1 µA typical, making it suitable for battery-powered devices.
- Excellent line and load regulation.
- Maximum operating voltage of 12 V.
- Low output voltage options available, including 1.8 V.
- High accuracy output voltage with a tolerance of ±2.5%.
- Compatible with low-cost ceramic capacitors, requiring a minimum output capacitor of 0.1 µF.
- Housed in the micro-miniature Thin SOT23-5 surface mount package.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015.
Applications
The MC78LC18NTRG is designed for use in handheld communication equipment and portable battery-powered applications. It is particularly suited for devices that require low power consumption and high efficiency, such as:
- Mobile phones and other handheld communication devices.
- Portable electronic devices like GPS units, PDAs, and digital cameras.
- Battery-powered sensors and IoT devices.
- Low-power industrial control systems.
Q & A
- What is the typical quiescent current of the MC78LC18NTRG?
The typical quiescent current is 1.1 µA.
- What is the maximum operating voltage for the MC78LC18NTRG?
The maximum operating voltage is 12 V.
- What is the minimum output capacitor required for the MC78LC18NTRG?
The minimum output capacitor required is 0.1 µF.
- What is the output voltage tolerance of the MC78LC18NTRG?
The output voltage tolerance is ±2.5%.
- What type of package does the MC78LC18NTRG come in?
The device is housed in the micro-miniature Thin SOT23-5 surface mount package.
- What are the standard output voltage options available for the MC78LC00 series?
Standard voltage versions include 1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V, 4.0 V, and 5.0 V.
- Does the MC78LC18NTRG have ESD protection?
- How do I ensure proper thermal management for the MC78LC18NTRG?
Ensure good thermal conductivity through the PCB, and follow guidelines for mounting pad configuration, board material, and ambient temperature to keep the junction temperature below the maximum 125°C.
- What is the maximum power dissipation for the MC78LC18NTRG at 25°C?
The maximum power dissipation at 25°C is up to 357 mW.
- Can I use other types of capacitors with the MC78LC18NTRG?
