Overview
The L79L05ABD13TR is a negative voltage regulator from STMicroelectronics, part of the L79L series. This three-terminal regulator is designed to provide a fixed negative output voltage and is known for its robustness and reliability. It features internal current limiting and thermal shutdown, making it essentially indestructible if an adequate heat sink is provided. The L79L05ABD13TR can deliver up to 100 mA of output current and is suitable for a wide range of applications, including local or on-card regulation to eliminate noise and distribution problems associated with single-point regulation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | -5 | V |
| Output Current | Up to 100 mA | mA |
| Input Voltage | -30 V (max) | V |
| Line Regulation | 150 mV | mV |
| Load Regulation | 60 mV | mV |
| Dropout Voltage | 1.7 V @ 40 mA | V |
| Quiescent Current | 6 mA (typical) | mA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | SO-8 | |
| Packing Type | Tape and Reel | |
| Mounting Type | Surface Mount |
Key Features
- Output current up to 100 mA
- Fixed negative output voltage of -5 V
- Internal current limiting and thermal shutdown protection
- Short-circuit protection
- No external components required
- Output tolerance of + 4%
- Low quiescent current and low noise
- ECOPACK2 compliant for environmental sustainability
Applications
The L79L05ABD13TR is versatile and can be used in various applications, including:
- Local or on-card voltage regulation to eliminate noise and distribution problems.
- Replacement for Zener diode/resistor combinations to improve output impedance and reduce quiescent current and noise.
- Use with power pass elements to create high-current voltage regulators.
- General power management in electronic circuits requiring a stable negative voltage supply.
Q & A
- What is the output voltage of the L79L05ABD13TR?
The output voltage is fixed at -5 V.
- What is the maximum output current of the L79L05ABD13TR?
The maximum output current is up to 100 mA.
- What are the key protection features of the L79L05ABD13TR?
The device features internal current limiting, thermal shutdown, and short-circuit protection.
- Does the L79L05ABD13TR require any external components?
No, it does not require any external components.
- What is the operating temperature range of the L79L05ABD13TR?
The operating temperature range is from -40°C to 125°C.
- What is the typical dropout voltage of the L79L05ABD13TR?
The typical dropout voltage is 1.7 V at 40 mA.
- What is the quiescent current of the L79L05ABD13TR?
The typical quiescent current is 6 mA.
- What package type is the L79L05ABD13TR available in?
The device is available in an SO-8 package.
- Is the L79L05ABD13TR environmentally compliant?
Yes, it is ECOPACK2 compliant.
- How is the L79L05ABD13TR typically packaged for shipping?
The device is shipped in tape and reel packaging.
