Overview
The L78L05ABZ is a three-terminal positive voltage regulator from STMicroelectronics. It is part of the L78L series, which is designed to provide stable and regulated output voltage. This regulator is known for its internal current limiting and thermal shutdown features, making it robust and reliable for various applications. The L78L05ABZ specifically provides a fixed output voltage of 5V, making it suitable for systems requiring a stable 5V supply.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VO) | 4.8 to 5.2 | V |
| Input Voltage (VI) | Up to 20 V | V |
| Output Current (IO) | Up to 100 mA | mA |
| Line Regulation | 150 mV (VI = 5.4 to 20 V, TJ = 25°C) | mV |
| Load Regulation | 60 mV (IO = 1 to 100 mA, TJ = 25°C) | mV |
| Quiescent Current (Id) | 6 mA (TJ = 25°C), 5.5 mA (TJ = 125°C) | mA |
| Dropout Voltage (Vd) | 1.7 V | V |
| Operating Junction Temperature Range | -40 to 125 °C | °C |
| Storage Temperature Range | -65 to 150 °C | °C |
Key Features
- Internal current limiting and thermal shutdown for enhanced reliability.
- Fixed output voltage of 5V.
- Low dropout voltage of 1.7V.
- Low quiescent current of 6 mA at 25°C.
- Good line and load regulation.
- Wide operating temperature range from -40 to 125°C.
Applications
- General-purpose voltage regulation in electronic devices.
- Power supplies for small to medium-sized electronic systems.
- Embedded systems requiring a stable 5V supply.
- Industrial control systems.
- Consumer electronics.
Q & A
- What is the output voltage of the L78L05ABZ?
The output voltage of the L78L05ABZ is 5V.
- What is the maximum input voltage for the L78L05ABZ?
The maximum input voltage for the L78L05ABZ is up to 20 V.
- What is the maximum output current of the L78L05ABZ?
The maximum output current of the L78L05ABZ is up to 100 mA.
- What are the line and load regulation specifications for the L78L05ABZ?
The line regulation is 150 mV (VI = 5.4 to 20 V, TJ = 25°C), and the load regulation is 60 mV (IO = 1 to 100 mA, TJ = 25°C).
- What is the quiescent current of the L78L05ABZ?
The quiescent current is 6 mA at 25°C and 5.5 mA at 125°C.
- What is the dropout voltage of the L78L05ABZ?
The dropout voltage is 1.7 V.
- What is the operating temperature range for the L78L05ABZ?
The operating temperature range is from -40 to 125 °C.
- What are some common applications for the L78L05ABZ?
Common applications include general-purpose voltage regulation, power supplies for small to medium-sized electronic systems, embedded systems, industrial control systems, and consumer electronics.
- Does the L78L05ABZ have internal current limiting and thermal shutdown?
- What is the storage temperature range for the L78L05ABZ?
The storage temperature range is from -65 to 150 °C.
