Overview
The L7812ACV is a three-terminal positive voltage regulator IC produced by STMicroelectronics. It is part of the L78 series, known for its reliability and performance in various power management applications. This regulator is designed to provide a fixed output voltage of 12V and can handle a maximum input voltage of 35V. The L7812ACV is packaged in a TO-220 format, making it suitable for a wide range of electronic systems that require stable and regulated voltage supply.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VO) | 11.75 - 12.25 | V |
| Input Voltage (VI) | Up to 35 | V |
| Output Current (IO) | Up to 1.5 A | A |
| Dropout Voltage (Vd) | 2 | V |
| Output Noise Voltage (eN) | 10 µV/VO | µV/VO |
| Output Resistance (RO) | 17 mΩ | mΩ |
| Short Circuit Current (Isc) | 0.2 A | A |
| Short Circuit Peak Current (Iscp) | 2.2 A | A |
| Operating Junction Temperature (TJ) | 0 to 125 °C | °C |
| Storage Temperature Range (TSTG) | -65 to 150 °C | °C |
| Package | TO-220 |
Key Features
- Fixed Output Voltage: Provides a stable output voltage of 12V.
- High Current Capability: Can handle up to 1.5 A of output current.
- Low Dropout Voltage: Dropout voltage of 2V ensures efficient operation.
- Low Output Noise: Output noise voltage of 10 µV/VO for minimal ripple.
- Thermal Stability: Operating junction temperature range from 0 to 125 °C.
- Short Circuit Protection: Internally limited short circuit current and peak current protection.
- Compact Packaging: Available in TO-220 package for easy integration.
Applications
The L7812ACV is versatile and can be used in a variety of applications, including:
- Power Supplies: For building stable and efficient power supply units.
- Industrial Control Systems: To regulate voltage in industrial automation and control systems.
- Consumer Electronics: In devices such as TVs, audio equipment, and other consumer electronics requiring stable voltage supply.
- Automotive Systems: For use in automotive electronics where reliable voltage regulation is crucial.
- Medical Devices: In medical equipment that requires precise voltage regulation.
Q & A
- What is the output voltage of the L7812ACV?
The output voltage of the L7812ACV is 12V.
- What is the maximum input voltage for the L7812ACV?
The maximum input voltage for the L7812ACV is 35V.
- What is the maximum output current of the L7812ACV?
The maximum output current of the L7812ACV is 1.5 A.
- What is the dropout voltage of the L7812ACV?
The dropout voltage of the L7812ACV is 2V.
- What is the operating junction temperature range for the L7812ACV?
The operating junction temperature range for the L7812ACV is from 0 to 125 °C.
- Does the L7812ACV have short circuit protection?
- In what package is the L7812ACV available?
The L7812ACV is available in the TO-220 package.
- What is the minimum load current required for regulation?
The minimum load current required for regulation is 5 mA.
- Is the L7812ACV RoHS compliant?
- What are some common applications of the L7812ACV?
The L7812ACV is commonly used in power supplies, industrial control systems, consumer electronics, automotive systems, and medical devices.
