Overview
The L79L05ACZ is a negative voltage regulator produced by STMicroelectronics. This component is part of the L79L series, which is designed to provide stable negative voltage outputs. The L79L05ACZ specifically regulates at -5V with an output current of up to 100 mA. It is packaged in a TO-92 case, making it suitable for through-hole mounting. This regulator is known for its robust protection features, including thermal overload protection and short-circuit protection, ensuring reliable operation in various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | STMicroelectronics | |
| Part Number | L79L05ACZ | |
| Output Voltage | -5.0 | V |
| Output Current | 0.1 A (100 mA) | A |
| Quiescent Current | 6.0 mA | mA |
| Supply Voltage Rejection | 49 dB | dB |
| Dropout Voltage | 1.7 V | V |
| Operating Temperature | 0 to 150 °C | °C |
| Package Type | TO-92 | |
| Mounting Type | Through Hole | |
| Number of Leads/Terminals | 3 |
Key Features
- Thermal Overload Protection: The regulator includes internal thermal shutdown to prevent overheating.
- Short-Circuit Protection: Built-in protection against short circuits ensures the regulator's longevity.
- No External Components Required: The L79L05ACZ operates without the need for additional external components.
- High Supply Voltage Rejection: With a supply voltage rejection of 49 dB, it provides stable output voltage despite input voltage variations.
- Low Dropout Voltage: A dropout voltage of 1.7 V minimizes the voltage difference between the input and output.
Applications
The L79L05ACZ is suitable for a wide range of applications, including:
- Local or On-Card Regulation: It helps in eliminating noise and distribution problems associated with single-point regulation.
- High-Current Voltage Regulators: Can be used with power pass elements to create high-current voltage regulators.
- Zener Diode/Resistor Combination Replacement: Offers improved output impedance and lower quiescent current compared to traditional Zener diode/resistor combinations.
Q & A
- What is the output voltage of the L79L05ACZ?
The output voltage of the L79L05ACZ is -5.0 V.
- What is the maximum output current of the L79L05ACZ?
The maximum output current is 0.1 A (100 mA).
- What type of protection does the L79L05ACZ have?
The L79L05ACZ has thermal overload protection and short-circuit protection.
- Does the L79L05ACZ require any external components to operate?
No, the L79L05ACZ does not require any external components to operate.
- What is the operating temperature range of the L79L05ACZ?
The operating temperature range is from 0 to 150 °C.
- What is the package type of the L79L05ACZ?
The package type is TO-92.
- How many leads/terminals does the L79L05ACZ have?
The L79L05ACZ has 3 leads/terminals.
- What is the quiescent current of the L79L05ACZ?
The quiescent current is 6.0 mA.
- What is the dropout voltage of the L79L05ACZ?
The dropout voltage is 1.7 V.
- What are some common applications of the L79L05ACZ?
Common applications include local or on-card regulation, high-current voltage regulators, and as a replacement for Zener diode/resistor combinations.
