Overview
The L78L05ABZ-TR is a linear voltage regulator produced by STMicroelectronics. It is part of the L78L series of three-terminal positive regulators, designed to provide a fixed output voltage of 5V. This regulator is known for its robustness, featuring internal current limiting and thermal shutdown, making it essentially indestructible if an adequate heat sink is provided. It can deliver up to 100mA of output current and operates within a wide temperature range of -40°C to 125°C. The L78L05ABZ-TR is packaged in a TO-92 case and is suitable for a variety of applications requiring stable voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Regulator Type | Linear Voltage | |
| Maximum Output Current | 100 | mA |
| Output Voltage | 5 | V |
| Number of Outputs | 1 | |
| Line Regulation | 150 | mV |
| Load Regulation | 60 | mV |
| Polarity | Positive | |
| Mounting Type | Through Hole | |
| Package Type | TO-92 | |
| Quiescent Current | 6 | mA |
| Pin Count | 3 | |
| Output Type | Fixed | |
| Dimensions | 4.95 x 3.94 x 4.95 mm | |
| Maximum Operating Temperature | 125 | °C |
| Minimum Operating Temperature | -40 | °C |
| Maximum Input Voltage | 30 | V |
| Dropout Voltage | 1.7 V @ 40 mA | V |
| Thermal Shutdown Protection | Yes | |
| Short Circuit Protection | Yes |
Key Features
- Internal Current Limiting and Thermal Shutdown: These features make the regulator essentially indestructible, ensuring safe operation under various conditions.
- Fixed Output Voltage: Provides a stable 5V output voltage.
- High Line and Load Regulation: Ensures a constant output voltage with line regulation of 150 mV and load regulation of 60 mV.
- Low Dropout Voltage: A dropout voltage of 1.7 V at 40 mA ensures efficient voltage regulation.
- Wide Operating Temperature Range: Operates from -40°C to 125°C, making it suitable for a wide range of applications.
- Compact TO-92 Package: Easy to integrate into various designs with its through-hole mounting type.
- Low Quiescent Current: A quiescent current of 6 mA at 25°C helps in power-efficient designs.
Applications
- General Electronics: Suitable for use in various electronic devices requiring stable voltage regulation.
- Industrial Automation: Can be used in industrial control systems and automation equipment.
- Consumer Electronics: Ideal for use in consumer electronic devices such as audio equipment, home appliances, and more.
- Automotive Systems: Although not specifically automotive-grade, it can be used in certain automotive applications where the specifications match the requirements.
- Embedded Systems: Useful in embedded systems that require a reliable and stable power supply.
Q & A
- What is the output voltage of the L78L05ABZ-TR?
The output voltage is fixed at 5V.
- What is the maximum output current of the L78L05ABZ-TR?
The maximum output current is 100mA.
- What is the operating temperature range of the L78L05ABZ-TR?
The operating temperature range is from -40°C to 125°C.
- Does the L78L05ABZ-TR have built-in protection features?
Yes, it has internal current limiting and thermal shutdown protection.
- What is the package type of the L78L05ABZ-TR?
The package type is TO-92.
- What is the quiescent current of the L78L05ABZ-TR at 25°C?
The quiescent current is 6mA at 25°C.
- What is the maximum input voltage for the L78L05ABZ-TR?
The maximum input voltage is 30V.
- Does the L78L05ABZ-TR have short circuit protection?
Yes, it has short circuit protection.
- What is the dropout voltage of the L78L05ABZ-TR at 40mA?
The dropout voltage is 1.7V at 40mA.
- Is the L78L05ABZ-TR RoHS compliant?
Yes, it is RoHS compliant (Ecopack2).
