Overview
The L78L08ACZTR is a three-terminal positive voltage regulator produced by STMicroelectronics. It is part of the L78L series, which is known for its robust features and reliability. This regulator is designed to provide a fixed output voltage of 8V and can deliver up to 100mA of output current, making it suitable for a wide range of applications. The L78L08ACZTR embeds internal current limiting and thermal shutdown, ensuring it is essentially indestructible when an adequate heat sink is provided.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Part Number | L78L08ACZTR |
| Regulator Topology | Positive Fixed |
| Output Voltage | 8 V |
| Maximum Output Current | 100 mA |
| Input Voltage Max | Up to 30 V |
| Dropout Voltage (typical) | 1.7 V @ 40mA |
| Line Regulation | 175 mV |
| Load Regulation | 80 mV |
| Accuracy | ±5% |
| Quiescent Current | 6 mA |
| Mounting Type | Through Hole |
| Package Type | TO-92-3 (Standard Body), TO-226 |
| Minimum Operating Temperature | 0 °C |
| Maximum Operating Temperature | +150 °C |
| Dimensions | 4.95 x 3.94 x 4.95 mm |
Key Features
- Internal current limiting and thermal shutdown for enhanced reliability and protection.
- Fixed output voltage of 8V with an accuracy of ±5%.
- Maximum output current of 100mA.
- No external components required for operation.
- Low quiescent current of 6mA.
- Low noise and high supply voltage rejection.
- Compact TO-92 package suitable for through-hole mounting.
Applications
The L78L08ACZTR is versatile and can be used in various applications, including:
- Local or on-card voltage regulation to eliminate noise and distribution problems associated with single-point regulation.
- Replacement for Zener diode/resistor combinations, offering improved performance with lower quiescent current and noise.
- High-current voltage regulators when used with power pass elements.
- Industrial, automotive, and consumer electronics where reliable voltage regulation is critical.
Q & A
- What is the output voltage of the L78L08ACZTR?
The output voltage of the L78L08ACZTR is 8V.
- What is the maximum output current of the L78L08ACZTR?
The maximum output current is 100mA.
- What is the maximum input voltage for the L78L08ACZTR?
The maximum input voltage is up to 30V.
- Does the L78L08ACZTR have internal protection features?
Yes, it has internal current limiting and thermal shutdown.
- What is the quiescent current of the L78L08ACZTR?
The quiescent current is 6mA.
- What is the operating temperature range of the L78L08ACZTR?
The operating temperature range is from 0°C to +150°C.
- What package type does the L78L08ACZTR use?
The package type is TO-92-3 (Standard Body) or TO-226.
- Is the L78L08ACZTR RoHS compliant?
No, it contains lead and is RoHS non-compliant.
- What are some common applications for the L78L08ACZTR?
It is commonly used in local or on-card regulation, Zener diode/resistor replacement, and high-current voltage regulators.
- Does the L78L08ACZTR require external components for operation?
No, it does not require any external components for operation.
