STMicroelectronics

L4931ABDT25TR

L4931ABDT25TR Description

The L4931ABDT25TR is a linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This IC offers a fixed output voltage of 2.5V and is capable of delivering a maximum output current of 250mA. It is housed in a DPAK package, which is suitable for surface-mount applications, ensuring robustness and reliability in various electronic circuits.

L4931ABDT25TR Features

• Output Type: Fixed, providing a stable 2.5V output voltage.
• Input Voltage Range: The regulator can operate with input voltages up to 20V, making it versatile for a wide range of applications.
• Output Current: It supports a maximum output current of 250mA, ideal for low to medium power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.8V at 250mA, the L4931ABDT25TR ensures efficient power conversion even at low input-to-output voltage differentials.
• Power Supply Current: The maximum supply current is 6mA, contributing to low power consumption.
• Quiescent Current: A quiescent current of 1mA ensures minimal power loss during standby conditions.
• High PSRR: The regulator boasts a high power supply rejection ratio (PSRR) of 75dB to 55dB across frequencies from 120Hz to 10kHz, effectively filtering out noise from the power supply.
• Protection Features: Over-current and over-temperature protection features safeguard the device and connected circuits from damage.
• Compliance: The L4931ABDT25TR is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence.
• Packaging: Available in a DPAK package with a moisture sensitivity level (MSL) of 1 (unlimited), it is suitable for surface-mount assembly processes.

L4931ABDT25TR Applications

The L4931ABDT25TR is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and high PSRR make it particularly suitable for:

• Consumer Electronics: Powering devices such as smartphones, tablets, and portable media players.
• Industrial Equipment: Providing stable power to sensors, actuators, and control systems.
• Medical Devices: Ensuring reliable power for critical medical instrumentation.
• Telecommunications: Supplying power to low-power communication modules and IoT devices.
• Automotive Electronics: Suitable for in-vehicle infotainment systems and electronic control units.

Conclusion of L4931ABDT25TR

The L4931ABDT25TR from STMicroelectronics is a versatile and reliable linear voltage regulator designed to meet the demands of modern electronic applications. Its fixed 2.5V output, low dropout voltage, and high PSRR make it an excellent choice for applications where stable and efficient power supply is crucial. The inclusion of over-current and over-temperature protection features further enhances its reliability and safety. Despite being marked as obsolete, the L4931ABDT25TR remains a valuable component for designers seeking a robust and efficient power solution.