Overview
The L79L15ACD13TR is a part of the L79L series of three-terminal negative voltage regulators produced by STMicroelectronics. These regulators are designed to provide stable negative output voltages and are known for their robustness and ease of use. They employ internal current limiting and thermal shutdown, making them essentially indestructible if an adequate heat-sink is provided. The L79L15ACD13TR specifically offers an output voltage of -15V and can deliver up to 100 mA of output current.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | -14.4 to -15.6 | V |
| Output Current | Up to 100 | mA |
| Input Voltage Range | -17.5 to -30 | V |
| Quiescent Current | 6.5 mA (at 25°C), 6 mA (at 125°C) | mA |
| Line Regulation | 300 mV (max) | mV |
| Load Regulation | 150 mV (max) | mV |
| Output Noise Voltage | 90 µV (10 Hz to 100 kHz) | µV |
| Supply Voltage Rejection | 34 to 39 dB | dB |
| Dropout Voltage | 1.7 V | V |
| Operating Junction Temperature Range | -40 to 125 °C | °C |
| Package Type | SO-8 |
Key Features
- Output current up to 100 mA
- Output voltage of -15 V with ±4% tolerance
- Thermal overload protection and short-circuit protection
- No external components required
- Low quiescent current and low noise
- Improved output impedance compared to Zener diode/resistor combinations
- Available in ECOPACK® packages for environmental compliance
Applications
The L79L15ACD13TR 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.
- Use with power pass elements to create high-current voltage regulators.
- Replacement for Zener diode/resistor combinations, offering improved output impedance and lower noise.
- General-purpose negative voltage regulation in various electronic systems.
Q & A
- What is the output voltage of the L79L15ACD13TR?
The output voltage of the L79L15ACD13TR is -15 V with a tolerance of ±4%.
- What is the maximum output current of the L79L15ACD13TR?
The maximum output current is up to 100 mA.
- Does the L79L15ACD13TR require any external components?
No, the L79L15ACD13TR does not require any external components.
- What kind of protection does the L79L15ACD13TR have?
The L79L15ACD13TR has thermal overload protection and short-circuit protection.
- What is the typical quiescent current of the L79L15ACD13TR?
The typical quiescent current is 6.5 mA at 25°C and 6 mA at 125°C.
- What is the operating junction temperature range of the L79L15ACD13TR?
The operating junction temperature range is -40 to 125 °C.
- In what package type is the L79L15ACD13TR available?
The L79L15ACD13TR is available in an SO-8 package.
- What are the environmental compliance features of the L79L15ACD13TR?
The L79L15ACD13TR is available in ECOPACK® packages, which meet various environmental compliance standards.
- Can the L79L15ACD13TR be used to replace Zener diode/resistor combinations?
- What are some common applications of the L79L15ACD13TR?
The L79L15ACD13TR is commonly used in local or on-card regulation, high-current voltage regulators, and general-purpose negative voltage regulation.
