Overview
The L78L05ABZ-AP is a three-terminal positive voltage regulator produced by STMicroelectronics. This component is part of the L78L series, which is known for its robustness and reliability. The L78L05ABZ-AP provides a fixed output voltage of 5 V and can deliver up to 100 mA of output current. It features internal current limiting, safe area protection, and thermal shutdown, making it suitable for a wide range of applications where stable voltage regulation is crucial.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage (Max) | 30 V |
| Output Voltage (Fixed) | 5 V |
| Dropout Voltage (Max) | 2 V |
| Output Current (Max) | 100 mA |
| Tolerance (%) | ±4% |
| Operating Temperature Range | -40°C to +125°C |
| Regulator Topology | Fixed |
| Quiescent Current | 6 mA (at 25°C), 5.5 mA (at 125°C) |
| No. of Outputs | Single |
| Output Noise | 40 µV |
| Load Regulation | 60 mV |
| Line Regulation | 150 mV |
| Package Style | TO-92 |
| Mounting Method | Through Hole |
Key Features
- Output current up to 100 mA
- Fixed output voltage of 5 V (available in other voltages such as 3.3, 6, 8, 9, 10, 12, 15, 18, 24 V for other models in the series)
- Thermal overload protection
- Short-circuit protection
- No external components required
- Available in either ±4% (A) or ±8% (C) selection
Applications
The L78L05ABZ-AP is designed for use in a variety of applications, including local or on-card voltage regulation to eliminate noise and distribution problems associated with single-point regulation. It can also be used with power pass elements to create high-current voltage regulators. Additionally, it can replace Zener diode/resistor combinations, offering improvements in terms of lower quiescent current and lower noise.
Common applications include industrial, automotive, and consumer electronics where stable and reliable voltage regulation is essential.
Q & A
- What is the maximum input voltage for the L78L05ABZ-AP?
The maximum input voltage is 30 V.
- What is the fixed output voltage of the L78L05ABZ-AP?
The fixed output voltage is 5 V.
- What is the maximum output current of the L78L05ABZ-AP?
The maximum output current is 100 mA.
- What are the key protection features of the L78L05ABZ-AP?
The key protection features include thermal overload protection and short-circuit protection.
- Does the L78L05ABZ-AP require any external components?
No, the L78L05ABZ-AP does not require any external components.
- What is the operating temperature range of the L78L05ABZ-AP?
The operating temperature range is -40°C to +125°C.
- What is the quiescent current of the L78L05ABZ-AP?
The quiescent current is 6 mA at 25°C and 5.5 mA at 125°C.
- What is the output noise voltage of the L78L05ABZ-AP?
The output noise voltage is 40 µV.
- What is the load regulation of the L78L05ABZ-AP?
The load regulation is 60 mV.
- What package style and mounting method does the L78L05ABZ-AP use?
The package style is TO-92, and the mounting method is Through Hole.
