STMicroelectronics

L7912ACD2T-TR

L7912ACD2T-TR Description

The L7912ACD2T-TR is a linear regulator IC designed by STMicroelectronics, featuring a fixed output voltage of -12V and a maximum output current of 1.5A. This device is housed in a D2PAK package, making it suitable for surface-mount applications. Despite being marked as obsolete, the L7912ACD2T-TR remains a reliable choice for power management in various electronic systems due to its robust performance and comprehensive protection features.

L7912ACD2T-TR Features

• Output Type: Fixed, ensuring a stable -12V output voltage.
• Output Current: Capable of delivering up to 1.5A, making it suitable for applications requiring moderate power.
• Output Configuration: Negative, ideal for systems that require a negative voltage supply.
• Voltage Dropout: A maximum dropout voltage of 1.1V at 1A (typical), ensuring efficient operation even at lower input voltages.
• Protection Features: Over-temperature and short-circuit protection, enhancing reliability and longevity.
• Operating Temperature: Wide range from 0°C to 125°C, suitable for both commercial and industrial environments.
• Current - Quiescent: Low quiescent current of 3 mA, minimizing power consumption during standby.
• PSRR: 60dB at 120Hz, providing excellent noise rejection and stable output voltage.
• Mounting Type: Surface mount, facilitating compact and efficient PCB designs.
• Package: D2PAK, offering a robust and thermally efficient solution.
• Compliance: REACH unaffected and ROHS3 compliant, ensuring environmental and regulatory standards are met.

L7912ACD2T-TR Applications

The L7912ACD2T-TR is ideal for a variety of applications where a stable negative voltage supply is required. Its 1.5A output capability and -12V fixed output make it suitable for:

• Power Supplies: Providing a stable voltage source for electronic circuits and systems.
• Audio Amplifiers: Supplying power to audio circuits where a negative voltage rail is necessary.
• Telecommunications: Powering components in telecom equipment that require a negative voltage.
• Industrial Control Systems: Ensuring reliable power delivery in industrial applications with wide temperature ranges.
• Consumer Electronics: Used in devices that require a negative voltage supply for specific components.

Conclusion of L7912ACD2T-TR

The L7912ACD2T-TR is a versatile and reliable linear regulator IC, offering a fixed -12V output with a maximum current of 1.5A. Its robust protection features, low dropout voltage, and wide operating temperature range make it a suitable choice for various applications, particularly those requiring a negative voltage supply. Despite being marked as obsolete, the L7912ACD2T-TR continues to be a dependable solution for power management in electronic systems.