Overview
The MC78LC50NTRG is a Low Dropout (LDO) Linear Voltage Regulator from onsemi, designed for handheld communication equipment and portable battery-powered applications that require low quiescent current. This regulator features an ultra-low quiescent current of 1.1 µA, making it highly efficient for power-sensitive applications. The MC78LC50NTRG includes a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting the output voltage, ensuring stable and accurate voltage regulation.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (TA = 25°C, Iout = 1.0 mA) | Vout | 4.90 | 5.00 | 5.10 | V |
| Maximum Output Current | Iout | 100 | mA | ||
| Quiescent Current (Iout = 1.0 mA to Iout(nom.)) | Iq | 1.1 | 3.6 | µA | |
| Maximum Operating Voltage | Vin | 12 | V | ||
| Output Voltage Temperature Coefficient | Tc | -100 | ppm/°C | ||
| Output Noise Voltage (f = 1.0 kHz to 100 kHz) | Vn | 89 | µVrms | ||
| Package Type | Thin SOT23-5 |
Key Features
- Ultra-low quiescent current of 1.1 µA typical, making it suitable for battery-powered applications.
- Excellent line and load regulation for stable output voltage.
- Maximum operating voltage of 12 V.
- Low output voltage options available, including 5 V for the MC78LC50NTRG.
- High accuracy output voltage with a tolerance of 2.5%.
- ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
- Compact micro-miniature Thin SOT23-5 surface mount package.
- Compatible with low-cost ceramic capacitors; minimum output capacitor of 0.1 µF required.
Applications
The MC78LC50NTRG is designed for use in handheld communication equipment and portable battery-powered applications. It is particularly suitable for devices that require low power consumption and stable voltage regulation, such as:
- Mobile phones and other handheld communication devices.
- Portable electronic devices like tablets, e-readers, and GPS devices.
- Battery-powered medical devices and wearables.
- Low-power IoT devices and sensors.
Q & A
- What is the typical quiescent current of the MC78LC50NTRG?
The typical quiescent current is 1.1 µA.
- What is the maximum output current of the MC78LC50NTRG?
The maximum output current is 100 mA.
- What is the output voltage of the MC78LC50NTRG?
The output voltage is 5 V.
- What type of package does the MC78LC50NTRG come in?
The MC78LC50NTRG comes in a Thin SOT23-5 surface mount package.
- What is the minimum output capacitor required for the MC78LC50NTRG?
The minimum output capacitor required is 0.1 µF.
- Does the MC78LC50NTRG have ESD protection?
Yes, it has ESD protection exceeding Human Body Model 2000 V per MIL-STD-883, Method 3015 and Machine Model 200 V.
- What are the typical applications for the MC78LC50NTRG?
It is typically used in handheld communication equipment and portable battery-powered applications.
- How does the MC78LC50NTRG ensure stable output voltage?
It features excellent line and load regulation and high accuracy output voltage with a tolerance of 2.5%.
- Can the MC78LC50NTRG be used with ceramic capacitors?
Yes, it is designed to be used with low-cost ceramic capacitors.
- What is the maximum operating voltage of the MC78LC50NTRG?
The maximum operating voltage is 12 V.
