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BD3988FV-E2

BD3988FV-E2 Description

The BD3988FV-E2 is a dual linear regulator IC designed for precision power management applications. Manufactured by ROHM Semiconductor, this IC offers adjustable positive and negative output voltages, making it highly versatile for a wide range of electronic systems. It features two regulators capable of delivering output currents of 25mA and 50mA, respectively, with a low dropout voltage of 0.35V at 25mA and 0.45V at 50mA. This ensures efficient power delivery even under low input-to-output voltage differentials.

The BD3988FV-E2 is housed in an 8SSOPB package, suitable for surface mount applications, and is available in tape and reel packaging for convenient handling and assembly. Despite its small form factor, it provides robust protection features, including over-current and over-temperature protection, ensuring reliable operation under various operating conditions.

BD3988FV-E2 Features

• Adjustable Output Type: The BD3988FV-E2 offers adjustable output voltages for both positive and negative rails, providing flexibility in power supply design.
• Dual Regulators: Equipped with two regulators, it can simultaneously manage two different power supply requirements, enhancing system efficiency and reducing component count.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 25mA and 0.45V at 50mA, this IC ensures high efficiency, especially in applications where input voltage is close to the output voltage.
• Low Quiescent Current: A quiescent current of only 0.5mA minimizes power consumption during standby, making it ideal for battery-powered and low-power applications.
• High PSRR: The 50dB power supply rejection ratio at 120Hz ensures clean output voltage, reducing noise and improving the performance of sensitive analog circuits.
• Protection Features: Over-current and over-temperature protection safeguard the IC and connected components from damage, enhancing reliability and longevity.
• Compliance: The BD3988FV-E2 is REACH unaffected and ROHS3 compliant, meeting environmental and regulatory standards for electronics manufacturing.

BD3988FV-E2 Applications

The BD3988FV-E2 is well-suited for applications requiring dual power supplies with adjustable output voltages. Its low dropout voltage and high PSRR make it ideal for precision analog circuits, such as:

• Audio Amplifiers: Provides clean power supply to minimize noise and distortion.
• Medical Devices: Ensures reliable and stable power for sensitive medical equipment.
• Industrial Control Systems: Offers efficient power management for dual supply requirements in various industrial applications.
• Battery-Powered Devices: The low quiescent current and low dropout voltage make it suitable for extending battery life in portable devices.

Conclusion of BD3988FV-E2

The BD3988FV-E2 from ROHM Semiconductor is a versatile and efficient dual linear regulator IC, offering adjustable positive and negative output voltages with low dropout and high PSRR. Its compact 8SSOPB package and surface mount compatibility make it suitable for space-constrained designs. Despite being marked as obsolete, the BD3988FV-E2 remains a reliable choice for applications requiring dual power supplies with high performance and robust protection features.