Overview
The MC79L05ABDR2G is a negative linear voltage regulator from onsemi, designed to provide a regulated negative voltage with a modest current level of up to 100 mA. This regulator is part of the MC79L00A Series, known for its ease of use and ruggedness. It features internal thermal shutdown and current limiting, making it suitable for various applications without the need for external components. The MC79L05ABDR2G is particularly useful for on-card regulation and offers significant advantages over traditional resistor/Zener diode configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Output Voltage | -5.0 | V |
| Output Current (Typical) | 100 | mA |
| Input Voltage Range | -6.7 to -30 | V |
| Dropout Voltage (IO = 40 mA, TJ = +25°C) | 1.7 | V |
| Load Regulation (TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA) | 100 mV | mV |
| Line Regulation (TJ = +25°C) | 250 mV | mV |
| Ripple Rejection (f = 120 Hz, TJ = +25°C) | 49 dB | dB |
| Output Noise Voltage (10 Hz ≤ f ≤ 100 kHz, TA = +25°C) | 40 µV | µV |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | SOIC-8 (Pb-Free) |
Key Features
- No External Components Required: The MC79L05ABDR2G operates without the need for additional external components in most applications.
- Internal Short Circuit Current Limiting: Protects the device from short circuit conditions.
- Internal Thermal Overload Protection: Shuts down the circuit in case of excessive power overload.
- Low Cost: An economical solution for negative voltage regulation.
- Complementary Positive Regulators: Available in the MC78L00 Series for positive voltage regulation needs.
- Pb-Free Packages: Environmentally friendly packaging options.
Applications
The MC79L05ABDR2G is suitable for a variety of applications, including:
- On-card regulation: Ideal for providing regulated negative voltage directly on the circuit board.
- Industrial equipment: Used in various industrial applications requiring stable negative voltage supplies.
- Automotive systems: Available with automotive temperature range selections for use in automotive applications.
- General electronics: Useful in any application requiring a regulated negative voltage at a modest current level.
Q & A
- What is the nominal output voltage of the MC79L05ABDR2G? The nominal output voltage is -5.0 V.
- What is the maximum output current of the MC79L05ABDR2G? The maximum output current is 100 mA.
- What is the input voltage range for the MC79L05ABDR2G? The input voltage range is from -6.7 V to -30 V.
- Does the MC79L05ABDR2G require external components for operation? No, in most applications, no external components are required.
- What type of protection does the MC79L05ABDR2G have against thermal overload? It has internal thermal overload protection that shuts down the circuit in case of excessive power overload.
- What is the dropout voltage of the MC79L05ABDR2G at 40 mA output current? The dropout voltage is 1.7 V.
- What is the ripple rejection of the MC79L05ABDR2G at 120 Hz? The ripple rejection is 49 dB.
- What is the operating temperature range of the MC79L05ABDR2G? The operating temperature range is from -40°C to +125°C.
- What type of packaging is available for the MC79L05ABDR2G? It is available in SOIC-8 (Pb-Free) packaging.
- Are there complementary positive regulators available for the MC79L05ABDR2G? Yes, they are available in the MC78L00 Series.
