Overview
The MC79L12ABPRAG is a negative linear voltage regulator from onsemi, designed for applications requiring up to 100 mA of current. This regulator is part of the MC79L00A Series, which is known for its ease of use, low cost, and robust features. It is suitable for on-card regulation or any application needing a regulated negative voltage at a modest current level. The MC79L12ABPRAG offers significant advantages over traditional resistor/zener diode configurations, including internal thermal overload protection and current limiting, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Output Voltage | -12 | V |
| Output Voltage Tolerance | 4% | % |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | TO-92 (Pb-Free) | |
| Maximum Output Current | 100 mA | mA |
| Dropout Voltage (IO = 40 mA) | 1.7 V | V |
| Input Regulation (TJ = +25°C) | 300 mV (VI = -17.5 V to -30 V) | mV |
| Load Regulation (TJ = +25°C) | 250 mV (IO = 1 mA to 40 mA) | mV |
| Ripple Rejection (f = 120 Hz) | 49 dB | dB |
| Thermal Resistance, Junction-to-Ambient | 160 °C/W (TO-92 Type) | °C/W |
| Storage Temperature Range | -65°C to +150°C | °C |
Key Features
- No external components required for operation.
- Internal short circuit current limiting.
- Internal thermal overload protection.
- Low cost.
- Complementary positive regulators available (MC78L00 Series).
- Pb-Free packages available.
Applications
The MC79L12ABPRAG is versatile and can be used in a variety of applications, including:
- On-card regulation.
- Any application requiring a regulated negative voltage at a modest current level.
- Industrial control systems.
- Consumer electronics.
- Automotive systems.
Q & A
- What is the nominal output voltage of the MC79L12ABPRAG? The nominal output voltage is -12 V.
- What is the maximum output current of the MC79L12ABPRAG? The maximum output current is 100 mA.
- What is the dropout voltage at 40 mA output current? The dropout voltage is 1.7 V.
- What are the available package types for the MC79L12ABPRAG? The available package type is TO-92 (Pb-Free).
- Does the MC79L12ABPRAG require external components for operation? No, external components are not required for operation.
- What are the thermal protection features of the MC79L12ABPRAG? It features internal thermal overload protection and current limiting.
- What is the operating temperature range of the MC79L12ABPRAG? The operating temperature range is -40°C to +125°C.
- What is the ripple rejection of the MC79L12ABPRAG at 120 Hz? The ripple rejection is 49 dB.
- Is the MC79L12ABPRAG Pb-Free? Yes, the MC79L12ABPRAG is available in Pb-Free packages.
- What are some common applications of the MC79L12ABPRAG? Common applications include on-card regulation, industrial control systems, consumer electronics, and automotive systems.
