STMicroelectronics

L4931ABDT35TR

L4931ABDT35TR Description

The L4931ABDT35TR is a high-performance linear voltage regulator from STMicroelectronics, designed to deliver a fixed output voltage of 3.5V with a maximum output current of 250mA. This regulator is housed in a DPAK package, making it suitable for surface mount applications. The device is optimized for high efficiency and low power consumption, with a maximum supply current of 6 mA and a quiescent current of 1 mA. The L4931ABDT35TR features a low dropout voltage of 0.8V at 250mA, ensuring stable operation even under low input voltage conditions. It also offers excellent power supply rejection ratio (PSRR) performance, ranging from 73dB at 120Hz to 55dB at 10kHz, which helps in maintaining a clean output voltage. The regulator includes over-current and over-temperature protection features, enhancing its reliability and robustness in various operating conditions. The L4931ABDT35TR is REACH unaffected and ROHS3 compliant, making it suitable for environmentally conscious applications. It is available in a tape and reel package, facilitating easy handling and integration into automated assembly processes.

L4931ABDT35TR Features

• Fixed Output Voltage: The L4931ABDT35TR provides a stable 3.5V output voltage, ensuring consistent power supply for sensitive electronic components.
• High Output Current: Capable of delivering up to 250mA, this regulator is suitable for applications requiring moderate to high current loads.
• Low Dropout Voltage: With a maximum dropout voltage of 0.8V at 250mA, the regulator maintains efficiency even when input voltage is close to the output voltage.
• Low Quiescent Current: A quiescent current of just 1 mA ensures minimal power consumption during standby or low-load conditions.
• High PSRR: The regulator offers a high power supply rejection ratio, ranging from 73dB at 120Hz to 55dB at 10kHz, which helps in filtering out noise and maintaining a clean output voltage.
• Protection Features: Integrated over-current and over-temperature protection features enhance the reliability and robustness of the regulator in various operating conditions.
• Compliance: The L4931ABDT35TR is REACH unaffected and ROHS3 compliant, making it suitable for environmentally conscious applications.
• Packaging: Available in a DPAK package with a tape and reel format, facilitating easy integration into surface mount assembly processes.

L4931ABDT35TR Applications

The L4931ABDT35TR is ideal for a wide range of applications that require a stable and efficient power supply. Some specific use cases include:

• Consumer Electronics: Ideal for powering sensitive components in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Suitable for low-power industrial applications where stable voltage regulation and high reliability are crucial.
• Automotive Systems: Can be used in automotive electronics for powering control units and sensors, ensuring reliable operation under varying conditions.
• Medical Devices: Provides a stable power supply for medical equipment, ensuring accurate and consistent performance.
• Communication Systems: Ideal for powering communication modules and IoT devices where low power consumption and high efficiency are essential.

Conclusion of L4931ABDT35TR

The L4931ABDT35TR from STMicroelectronics is a highly efficient and reliable linear voltage regulator designed to meet the demands of modern electronic systems. Its fixed 3.5V output voltage, combined with a high output current capability and low dropout voltage, makes it suitable for a wide range of applications. The regulator's low quiescent current and high PSRR ensure minimal power consumption and clean output voltage, while its integrated protection features enhance its robustness and reliability. The L4931ABDT35TR's compliance with environmental standards and its availability in a surface mount DPAK package make it an excellent choice for designers looking for a high-performance, environmentally friendly power management solution.