Overview
The MC79L12ACPRPG is a negative linear voltage regulator produced by onsemi. This device is part of the MC79L00A Series, which are inexpensive and easy-to-use regulators suitable for various applications requiring up to 100 mA of current. The MC79L12ACPRPG is specifically designed to provide a regulated negative voltage of -12V, making it ideal for on-card regulation or any application where a modest current level of negative voltage is required.
This regulator offers several advantages over traditional resistor/zener diode configurations, including internal thermal overload protection and current limiting, which enhance its ruggedness and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Nominal Output Voltage | -12 | Vdc |
| Output Voltage Tolerance (TJ = +25°C) | -11.5 to -12.5 | Vdc |
| Input Voltage Range | -14.5 to -27 | Vdc |
| Output Current | Up to 100 | mA |
| Dropout Voltage (IO = 40 mA, TJ = +25°C) | 1.7 | Vdc |
| Input Regulation (TJ = +25°C) | 300 mV (max) | mV |
| Load Regulation (TJ = +25°C, 1.0 mA ≤ IO ≤ 40 mA) | 170 mV (max) | mV |
| Thermal Resistance, Junction-to-Ambient (TO-92) | 160 | °C/W |
| Thermal Resistance, Junction-to-Ambient (SOIC-8) | 180 | °C/W |
| Operating Temperature Range | 0°C to +125°C | °C |
| Package Type | TO-92, SOIC-8 |
Key Features
- No External Components Required: The MC79L12ACPRPG operates without the need for additional external components in most applications.
- Internal Short Circuit Current Limiting: This feature protects the device from short circuit conditions.
- Internal Thermal Overload Protection: The regulator shuts down when subjected to excessive power overload conditions, ensuring device reliability.
- Low Cost: The MC79L12ACPRPG is an economical solution for negative voltage regulation needs.
- Pb-Free Packages: Available in lead-free packages, making it compliant with RoHS standards.
- Complementary Positive Regulators: The MC78L00 Series offers complementary positive regulators for dual-voltage applications.
Applications
The MC79L12ACPRPG is versatile and can be used in a variety of applications, including:
- On-Card Regulation: Ideal for providing regulated negative voltage on printed circuit boards.
- Industrial Equipment: Suitable for use in industrial control systems, power supplies, and other equipment requiring stable negative voltages.
- Consumer Electronics: Can be used in consumer electronic devices that require regulated negative voltages.
- Automotive Systems: Applicable in automotive systems where reliable negative voltage regulation is necessary.
Q & A
- What is the nominal output voltage of the MC79L12ACPRPG?
The nominal output voltage is -12V.
- What is the maximum output current of the MC79L12ACPRPG?
The maximum output current is up to 100 mA.
- What are the package types available for the MC79L12ACPRPG?
The device is available in TO-92 and SOIC-8 packages.
- Does the MC79L12ACPRPG require external components for operation?
No, in most applications, no external components are required for operation.
- What protection features does the MC79L12ACPRPG have?
The device features internal short circuit current limiting and thermal overload protection.
- What is the operating temperature range of the MC79L12ACPRPG?
The operating temperature range is from 0°C to +125°C.
- Is the MC79L12ACPRPG RoHS compliant?
- What is the dropout voltage of the MC79L12ACPRPG at 40 mA output current?
The dropout voltage is 1.7 Vdc at 40 mA output current.
- What is the input voltage range for the MC79L12ACPRPG?
The input voltage range is from -14.5 V to -27 V.
- What are some common applications of the MC79L12ACPRPG?
Common applications include on-card regulation, industrial equipment, consumer electronics, and automotive systems.
