Overview
The MC78L05ABD is a fixed voltage regulator from onsemi, part of the MC78L00A series. This regulator is designed to provide a stable output voltage of 5.0 volts with a maximum current of 100 mA. It is known for its simplicity, ruggedness, and performance advantages over traditional zener diode-resistor combinations. The device features internal current limiting and thermal shutdown, making it suitable for a wide range of applications requiring a regulated power supply.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (TJ = +25°C) | 4.8 | 5.0 | 5.2 | Vdc |
| Line Regulation (TJ = +25°C, IO = 40 mA) | - | - | 55 | mV |
| Load Regulation (TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA) | - | - | 60 | mV |
| Input Bias Current (TJ = +25°C) | - | 3.8 | 6.0 | mA |
| Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz) | - | - | 40 | μV |
| Ripple Rejection (IO = 40 mA, f = 120 Hz, 8.0 Vdc ≤ VI ≤ 18 V, TJ = +25°C) | 41 | 49 | - | dB |
| Dropout Voltage (TJ = +25°C) | - | - | 1.7 | Vdc |
| Maximum Junction Temperature | - | - | 150 | °C |
| Storage Temperature Range | -65 | - | 150 | °C |
Key Features
- Fixed output voltage of 5.0 volts with high accuracy.
- Maximum current of 100 mA.
- Internal current limiting and thermal shutdown for protection.
- No external components required in many applications.
- Low output impedance and quiescent current.
- High ripple rejection (41 dB to 49 dB at 120 Hz).
- Low dropout voltage of 1.7 V.
- Available in SOIC-8 and TO-92 packages.
Applications
The MC78L05ABD is suitable for various applications requiring a stable and regulated 5.0-volt power supply. These include:
- Consumer electronics.
- Industrial control systems.
- Automotive systems (NCV prefix models).
- Low-power microcontroller and microprocessor systems.
- Battery-powered devices.
Q & A
- What is the output voltage of the MC78L05ABD?
The output voltage of the MC78L05ABD is 5.0 volts.
- What is the maximum current rating of the MC78L05ABD?
The maximum current rating is 100 mA.
- Does the MC78L05ABD require external components for operation?
No, in many applications, no external components are required.
- What are the key protection features of the MC78L05ABD?
The device features internal current limiting and thermal shutdown.
- What is the ripple rejection of the MC78L05ABD?
The ripple rejection is between 41 dB and 49 dB at 120 Hz.
- What is the dropout voltage of the MC78L05ABD?
The dropout voltage is 1.7 V.
- What are the available packages for the MC78L05ABD?
The device is available in SOIC-8 and TO-92 packages.
- What is the maximum junction temperature for the MC78L05ABD?
The maximum junction temperature is 150°C.
- What is the storage temperature range for the MC78L05ABD?
The storage temperature range is -65°C to 150°C.
- Is the MC78L05ABD suitable for automotive applications?
Yes, models with the NCV prefix are suitable for automotive and other applications requiring specific site and change control.
