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BD3931HFP-TR

BD3931HFP-TR Description

The BD3931HFP-TR is a high-performance linear regulator designed by ROHM Semiconductor, a leading manufacturer in the power management integrated circuit (PMIC) domain. This device is specifically engineered to provide a fixed output voltage of 5V with a maximum output current of 500mA. It features a maximum input voltage of 25V, ensuring robustness and reliability in various applications. The regulator is designed with a dropout voltage of 1.5V at 200mA, which is crucial for maintaining efficiency in low-voltage scenarios.

The BD3931HFP-TR is housed in a surface-mount package, specifically a tape and reel (TR) format, making it suitable for automated assembly processes. It boasts a quiescent current of 30 µA and a supply current of 40 µA, contributing to its energy-efficient operation. The regulator also offers a power supply rejection ratio (PSRR) of 55dB at 120Hz, which is essential for minimizing noise and maintaining a stable output voltage.

BD3931HFP-TR Features

• Output Type: Fixed 5V output voltage ensures consistent power supply to connected devices.
• High Input Voltage Range: Capable of handling up to 25V input, providing flexibility and reliability in diverse power supply environments.
• Efficient Dropout Voltage: A maximum dropout voltage of 1.5V at 200mA ensures high efficiency, particularly in low-voltage applications.
• Low Quiescent Current: With a quiescent current of 30 µA and a supply current of 40 µA, the BD3931HFP-TR is designed for energy efficiency, making it ideal for battery-powered devices.
• Protection Features: Comprehensive protection mechanisms, including over-current, over-temperature, over-voltage, and reverse polarity protection, enhance the reliability and safety of the regulator.
• Surface Mount Packaging: The tape and reel (TR) package format is ideal for automated assembly processes, ensuring ease of integration into modern manufacturing lines.
• High PSRR: A power supply rejection ratio of 55dB at 120Hz ensures minimal noise and stable output voltage, crucial for sensitive applications.

BD3931HFP-TR Applications

The BD3931HFP-TR is well-suited for a variety of applications where a stable and efficient power supply is essential. Its fixed 5V output and 500mA current capability make it ideal for powering microcontrollers, sensors, and other low-power electronic devices. The regulator's ability to handle a wide input voltage range and its low dropout voltage make it particularly useful in battery-powered systems where input voltage can vary significantly.

Key application areas include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearable technology.
• Industrial Automation: Suitable for powering sensors, actuators, and control systems in industrial environments.
• Medical Devices: Provides a reliable power source for medical equipment that requires stable and low-noise power supplies.
• Automotive Electronics: Can be used in various automotive applications, including infotainment systems and electronic control units.

Conclusion of BD3931HFP-TR

The BD3931HFP-TR from ROHM Semiconductor is a versatile and reliable linear regulator designed to meet the demands of modern electronic systems. Its fixed 5V output, high input voltage range, and low dropout voltage make it an excellent choice for a wide range of applications. The regulator's low quiescent current and high PSRR ensure energy efficiency and stable performance, while comprehensive protection features enhance its reliability and safety.

Despite being marked as "Not For New Designs," the BD3931HFP-TR remains a valuable component for existing systems and applications where its unique features and performance benefits are required. Its compliance with REACH and ROHS3 standards further underscores its suitability for use in environmentally conscious designs.