Overview
The L7812ABV is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This regulator is designed to provide a fixed output voltage of 12V and can handle a maximum output current of 1.5A. It is available in several package types, including TO-220, TO-220FP, D²PAK, and DPAK, making it versatile for various applications. The L7812ABV is known for its high performance, reliability, and ease of use in power supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 11.75 to 12.25 | V |
| Output Current | 1.5 | A |
| Input Voltage | Up to 35 | V |
| Dropout Voltage | 2 | V |
| Quiescent Current | 8 | mA |
| Line Regulation | 13 to 120 | mV |
| Load Regulation | 25 to 100 | mV |
| Output Noise Voltage | 10 | µV/VO |
| Thermal Resistance Junction-Case | 5 | °C/W |
| Thermal Resistance Junction-Ambient | 50 | °C/W |
| Operating Junction Temperature | -40 to 125 | °C |
| Storage Temperature Range | -65 to 150 | °C |
Key Features
- Fixed 12V output voltage with high accuracy.
- Maximum output current of 1.5A.
- Available in TO-220, TO-220FP, D²PAK, and DPAK packages.
- Internal thermal overload protection and short-circuit protection.
- Low dropout voltage of 2V.
- High ripple rejection ratio (up to 65 dB at 120 Hz).
- Low output noise voltage (10 µV/VO).
Applications
The L7812ABV is suitable for a wide range of applications, including:
- Power supply systems requiring a stable 12V output.
- Industrial control systems.
- Consumer electronics.
- Automotive systems.
- Medical devices.
- Telecommunication equipment.
Q & A
- What is the output voltage of the L7812ABV?
The output voltage of the L7812ABV is 12V. - What is the maximum output current of the L7812ABV?
The maximum output current is 1.5A. - What are the available package types for the L7812ABV?
The L7812ABV is available in TO-220, TO-220FP, D²PAK, and DPAK packages. - What is the dropout voltage of the L7812ABV?
The dropout voltage is 2V. - Does the L7812ABV have thermal protection?
Yes, it has internal thermal overload protection. - What is the ripple rejection ratio of the L7812ABV?
The ripple rejection ratio is up to 65 dB at 120 Hz. - What is the operating junction temperature range of the L7812ABV?
The operating junction temperature range is -40 to 125°C. - What is the storage temperature range of the L7812ABV?
The storage temperature range is -65 to 150°C. - What is the minimum load current required for regulation?
The minimum load current required for regulation is 5 mA. - Is the L7812ABV suitable for automotive applications?
Yes, it is suitable for automotive systems among other applications.
