onsemi

MC7905BD2TR4G

MC7905BD2TR4G Description

The MC7905BD2TR4G is a linear regulator IC designed for power management applications, offering a fixed -5V output voltage with a maximum output current of 1A. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and is packaged in a D2PAK format suitable for surface mount applications. Despite its obsolete status, the MC7905BD2TR4G remains a reliable choice for specific applications due to its robust design and compliance with industry standards such as REACH and ROHS3.

This regulator features a single regulator with a negative output configuration, ensuring stable power delivery. The voltage dropout is rated at a maximum of 1.3V at 1A (typical), which is relatively low compared to other linear regulators, making it suitable for applications where efficiency is critical. The device also boasts a high power supply rejection ratio (PSRR) of 70dB at 120Hz, effectively filtering out noise from the power supply and ensuring clean output voltage.

MC7905BD2TR4G Features

• Output Type: Fixed -5V
• Output Current: 1A
• Number of Regulators: 1
• Output Configuration: Negative
• Voltage Dropout (Max): 1.3V @ 1A (Typ)
• PSRR: 70dB (120Hz)
• Protection Features: Over Current, Over Temperature
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8542.39.0001
• Compliance: REACH Unaffected, ROHS3 Compliant

MC7905BD2TR4G Applications

The MC7905BD2TR4G is ideal for applications requiring a stable -5V power supply with a maximum current of 1A. Its low dropout voltage and high PSRR make it suitable for sensitive electronic circuits where noise and efficiency are critical factors. Specific use cases include:

• Analog Circuits: Providing a clean and stable power supply for analog circuits, such as operational amplifiers and ADCs.
• Telecommunications: Powering line cards and other communication equipment that require a reliable and efficient power source.
• Industrial Automation: Supplying power to control systems and sensors in industrial environments.
• Medical Equipment: Ensuring stable power delivery for medical devices that require precise voltage regulation.

Conclusion of MC7905BD2TR4G

The MC7905BD2TR4G is a robust and reliable linear regulator IC, offering a fixed -5V output with a maximum current of 1A. Its low dropout voltage and high PSRR make it an excellent choice for applications requiring efficient and noise-free power delivery. Despite being marked as obsolete, the device's compliance with industry standards such as REACH and ROHS3 ensures its continued relevance in specific applications. The MC7905BD2TR4G's surface mount package and protection features further enhance its suitability for modern electronic designs.