Overview
The MC78L05ACPX is a 3-terminal positive voltage regulator produced by onsemi. This component is part of the MC78L00A series and is designed to provide a stable 5V output voltage with a maximum current of 100 mA. It is widely used in various electronic applications requiring a reliable and efficient voltage regulation.
The regulator features internal thermal overload protection and short-circuit current limiting, making it robust and reliable in diverse operating conditions. The MC78L05ACPX is available in a TO-92 package, which is compact and suitable for a variety of board designs.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage | VI | - | - | 30 | Vdc |
| Output Voltage (TJ = 25°C) | VO | 4.8 | 5.0 | 5.2 | Vdc |
| Line Regulation (TJ = 25°C, 7V ≤ VI ≤ 20V) | Regline | - | - | 150 | mV |
| Load Regulation (TJ = 25°C, 1mA ≤ IO ≤ 100mA) | Regload | - | - | 60 | mV |
| Input Bias Current (TJ = 25°C) | IIB | - | - | 6.0 | mA |
| Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz) | Vn | - | - | 40 | μV |
| Ripple Rejection (IO = 40 mA, f = 120 Hz, 8V ≤ VI ≤ 18V) | RR | - | - | 49 | dB |
| Dropout Voltage (TJ = 25°C) | VD | - | - | 1.7 | V |
| Operating Junction Temperature Range | TJ | 0 | - | 150 | °C |
| Storage Temperature Range | TSTG | -65 | - | 150 | °C |
Key Features
- Internal Thermal Overload Protection: The regulator shuts down the circuit when subjected to excessive power overload conditions.
- Short Circuit Protection: Limits the maximum current the circuit will pass, enhancing reliability.
- Compact Package: Available in a TO-92 package, making it suitable for various board designs.
- Low Dropout Voltage: A dropout voltage of 1.7V at TJ = 25°C ensures efficient voltage regulation.
- High Ripple Rejection: Provides a ripple rejection of up to 49 dB, ensuring a stable output voltage.
- Low Output Noise: Output noise voltage is as low as 40 μV, making it suitable for noise-sensitive applications.
Applications
The MC78L05ACPX is versatile and can be used in a wide range of applications, including:
- Embedded Systems: Suitable for powering microcontrollers and other components in embedded systems.
- Industrial Control Systems: Used in industrial automation and control systems where stable voltage regulation is crucial.
- Consumer Electronics: Found in various consumer electronic devices requiring reliable voltage regulation.
- Automotive Systems: The NCV prefix version is designed for automotive and other applications requiring strict quality and reliability standards.
Q & A
- What is the output voltage of the MC78L05ACPX?
The output voltage of the MC78L05ACPX is 5V.
- What is the maximum output current of the MC78L05ACPX?
The maximum output current is 100 mA.
- What type of package is the MC78L05ACPX available in?
The MC78L05ACPX is available in a TO-92 package.
- Does the MC78L05ACPX have internal thermal overload protection?
Yes, it has internal thermal overload protection that shuts down the circuit in case of excessive power overload.
- What is the dropout voltage of the MC78L05ACPX?
The dropout voltage is 1.7V at TJ = 25°C.
- What is the ripple rejection of the MC78L05ACPX?
The ripple rejection is up to 49 dB.
- What is the operating junction temperature range of the MC78L05ACPX?
The operating junction temperature range is 0°C to 150°C.
- Does the MC78L05ACPX require external capacitors for stability?
While compensation capacitors are not always required, using them (e.g., 0.33 μF input and 0.1 μF output) can improve transient response and stability.
- What are some common applications of the MC78L05ACPX?
Common applications include embedded systems, industrial control systems, consumer electronics, and automotive systems.
- What is the storage temperature range of the MC78L05ACPX?
The storage temperature range is -65°C to 150°C.
