STMicroelectronics

L7812CP

L7812CP Description

The L7812CP is a fixed, positive voltage linear voltage regulator designed and manufactured by STMicroelectronics. With a minimum output voltage of 12V and a maximum dropout voltage of 2V at 1A (typical), this device is well-suited for applications requiring stable and reliable voltage regulation. The L7812CP is designed to operate within a wide temperature range of 0°C to 125°C, making it suitable for various industrial and automotive applications. It is compliant with the RoHS3 standard and has a moisture sensitivity level (MSL) of 1, indicating unlimited storage time before reflow soldering.

L7812CP Features

• Fixed Output Voltage: The L7812CP provides a stable 12V output, ensuring consistent performance in various electronic systems.
• High Output Current: Capable of delivering up to 1.5A of output current, this regulator is ideal for applications requiring higher power consumption.
• Low Quiescent Current: With a quiescent current of only 8mA, the L7812CP minimizes power loss and extends the battery life in portable devices.
• Over Temperature and Short Circuit Protection: These built-in protection features safeguard the device and the connected circuitry from potential damage.
• High PSRR: The L7812CP boasts a power supply rejection ratio (PSRR) of 55dB at 120Hz, ensuring minimal noise coupling and stable operation in noisy environments.
• Through-Hole Mounting: The L7812CP is available in a TO220FP package, making it suitable for through-hole mounting in PCB designs.

L7812CP Applications

The L7812CP is an excellent choice for various applications where stable and reliable voltage regulation is crucial:

1. Industrial Control Systems: Its ability to operate over a wide temperature range and withstand high currents makes it suitable for industrial control systems and automation equipment.
2. Automotive Electronics: The L7812CP can be used in automotive applications, such as infotainment systems, where stable power supply is essential.
3. Telecommunications Equipment: In telecommunications, the L7812CP can provide stable power to various components, ensuring reliable operation and minimal noise interference.
4. Portable Electronics: Due to its low quiescent current, the L7812CP is ideal for battery-powered devices, such as smartphones, tablets, and wearables, where power efficiency is critical.

Conclusion of L7812CP

The L7812CP from STMicroelectronics is a reliable and efficient linear voltage regulator, offering a fixed 12V output with high current capability and robust protection features. Its wide operating temperature range and low quiescent current make it an ideal choice for various industrial, automotive, and portable electronic applications. While it is marked as "Not For New Designs," the L7812CP remains a popular choice for existing designs and applications requiring a stable and reliable power supply.