Overview
The L78L09ACZ-AP is a three-terminal positive voltage regulator manufactured by STMicroelectronics. This regulator is part of the L78L series, known for its robust design and reliability. It features internal current limiting and thermal shutdown, making it essentially indestructible when adequate heat-sinking is provided. The L78L09ACZ-AP is designed to deliver a constant output voltage of 9V, with an output current capability of up to 100 mA. It operates over a wide range of input voltages and is suitable for various applications requiring stable voltage regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 8.64 - 9.36 | V |
| Output Current | Up to 100 | mA |
| Input Voltage Range | 11.5 - 23 | V |
| Line Regulation | 225 mV (max) | mV |
| Load Regulation | 80 mV (max) | mV |
| Quiescent Current | 6 mA (typ) | mA |
| Dropout Voltage | 1.7 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | SOT-89 | |
| Power Dissipation | Up to 800 mW | mW |
Key Features
- Internal current limiting and thermal shutdown for enhanced reliability and protection.
- No external components required for operation.
- Low quiescent current and low noise output.
- Can be used as a replacement for Zener diode/resistor combinations.
- Available in ±4% (A) or ±8% (C) selection for output voltage tolerance.
- RoHS compliant and packaged in an eco-friendly manner (Ecopack2).
Applications
The L78L09ACZ-AP is suitable for a wide range of applications, including:
- Local or on-card voltage regulation to eliminate noise and distribution problems associated with single-point regulation.
- Use with power pass elements to create high-current voltage regulators.
- Replacement for Zener diode/resistor combinations in various circuits.
- General-purpose voltage regulation in electronic devices and systems.
Q & A
- What is the output voltage of the L78L09ACZ-AP?
The output voltage of the L78L09ACZ-AP is 9V.
- What is the maximum output current of the L78L09ACZ-AP?
The maximum output current is up to 100 mA.
- What is the input voltage range for the L78L09ACZ-AP?
The input voltage range is from 11.5 to 23 V.
- Does the L78L09ACZ-AP require external components for operation?
No, the L78L09ACZ-AP does not require external components for operation.
- What are the key protection features of the L78L09ACZ-AP?
The key protection features include internal current limiting and thermal shutdown.
- What is the operating temperature range of the L78L09ACZ-AP?
The operating temperature range is from -40 to 125 °C.
- What is the typical quiescent current of the L78L09ACZ-AP?
The typical quiescent current is 6 mA.
- What is the dropout voltage of the L78L09ACZ-AP?
The dropout voltage is 1.7 V.
- Is the L78L09ACZ-AP RoHS compliant?
- In what package type is the L78L09ACZ-AP available?
The L78L09ACZ-AP is available in the SOT-89 package type.
