STMicroelectronics

L7905CD2T

L7905CD2T Description

The L7905CD2T is a fixed negative output linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator offers a stable -5V output voltage with a maximum output current of 1.5A. It is housed in a robust D2PAK surface-mount package, making it suitable for a wide range of industrial and consumer electronic applications. Despite its obsolete status, the L7905CD2T remains a reliable choice for applications requiring a negative voltage supply.

L7905CD2T Features

• Output Type: Fixed negative output voltage of -5V.
• Output Current: Capable of delivering up to 1.5A, ensuring sufficient power for demanding applications.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative output configuration, ideal for applications requiring a negative voltage supply.
• Voltage Dropout: A maximum dropout voltage of 1.4V at 1A (typical) ensures efficient operation even at lower input voltages.
• Operating Temperature Wide: operating temperature range from 0°C to 125°C, suitable for both ambient and high-temperature environments.
• Quiescent Current: Low quiescent current of 3 mA minimizes power consumption during standby or low-load conditions.
• PSRR: High power supply rejection ratio (PSRR) of 60dB at 120Hz ensures excellent noise filtering and stable output voltage.
• Protection Features: Over-temperature and short-circuit protection safeguard the regulator and connected circuits from damage.
• Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental and safety standards are met.
• Moisture Sensitivity Level: MSL 1 (unlimited), suitable for various manufacturing processes without additional moisture protection.
• Mounting Type: Surface mount, facilitating compact and reliable PCB designs.
• Package: Supplied in a tube package, convenient for handling and storage.

L7905CD2T Applications

The L7905CD2T is ideal for applications requiring a stable negative voltage supply. Its robust design and high current capability make it suitable for:

• Power Supply Circuits: Providing a stable -5V supply for analog and digital circuits.
• Industrial Equipment: Reliable power regulation in harsh industrial environments.
• Consumer Electronics: Powering devices that require a negative voltage rail.
• Telecommunications: Stable power supply for communication modules and interfaces.
• Automotive Electronics: Suitable for automotive applications where a negative voltage supply is necessary.

Conclusion of L7905CD2T

The L7905CD2T from STMicroelectronics is a versatile and reliable linear voltage regulator designed for applications requiring a fixed -5V output. Its high current capability, low dropout voltage, and robust protection features make it an excellent choice for a variety of electronic systems. Despite being marked as obsolete, the L7905CD2T continues to offer a stable and efficient power solution, ensuring compatibility and reliability in both existing and new designs.