ROHM Semiconductor

BD3931FP-E2

BD3931FP-E2 Description

The BD3931FP-E2 is a linear regulator IC designed by ROHM Semiconductor, a leading manufacturer in the electronics industry. This device is part of the Power Management (PMIC) category and is specifically tailored for applications requiring a fixed 5V output with a maximum output current of 500mA. The BD3931FP-E2 is housed in a TO252 package, making it suitable for surface mount applications. It features a maximum input voltage of 25V and a dropout voltage of 1.5V at 200mA, ensuring efficient power regulation even under varying load conditions.

BD3931FP-E2 Features

• Output Type: Fixed
• Voltage - Input (Max): 25V
• Current - Output: 500mA
• Number of Regulators: 1
• Output Configuration: Positive
• Current - Supply (Max): 40 µA
• Voltage - Output (Min/Fixed): 5V
• Voltage Dropout (Max): 1.5V @ 200mA
• Current - Quiescent (Iq): 30 µA
• PSRR: 55dB (120Hz)
• Protection Features: Over Current, Over Temperature, Over Voltage, Reverse Polarity
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• RoHS Status: ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8542.39.0001

The BD3931FP-E2 offers several unique features that set it apart from similar models. Its low quiescent current of 30 µA and maximum supply current of 40 µA make it highly efficient, especially in low-power applications. The regulator also boasts a high power supply rejection ratio (PSRR) of 55dB at 120Hz, ensuring minimal noise and ripple in the output voltage. Additionally, the BD3931FP-E2 includes comprehensive protection features such as over current, over temperature, over voltage, and reverse polarity protection, enhancing its reliability and robustness in various operating conditions.

BD3931FP-E2 Applications

The BD3931FP-E2 is ideal for a wide range of applications due to its fixed 5V output and robust protection features. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles where a stable 5V supply is required.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that need reliable power regulation.
• Automotive Electronics: Can be used in automotive applications such as infotainment systems and electronic control units (ECUs) where a fixed voltage supply is necessary.
• Medical Devices: Applicable in medical equipment like diagnostic tools and monitoring devices that require precise and stable power regulation.

Conclusion of BD3931FP-E2

The BD3931FP-E2 from ROHM Semiconductor is a versatile and reliable linear regulator IC, offering a fixed 5V output with a maximum current of 500mA. Its low dropout voltage, high PSRR, and comprehensive protection features make it an excellent choice for a variety of applications, from consumer electronics to industrial and automotive systems. Despite its "Not For New Designs" status, the BD3931FP-E2 remains a valuable component for existing designs and projects requiring a stable and efficient power solution.