STMicroelectronics

L4931ABPT33-TR

L4931ABPT33-TR Description

The L4931ABPT33-TR is a linear voltage regulator designed by STMicroelectronics, a leading manufacturer in the field of power management integrated circuits (PMIC). This regulator is part of the L4931 series and is specifically tailored for applications requiring a fixed output voltage of 3.3V and a maximum output current of 250mA. The device is housed in a PPAK package, which is suitable for surface-mount technology (SMT) applications, ensuring ease of integration into modern electronic designs.

The L4931ABPT33-TR features a maximum input voltage of 20V, providing a wide input range that accommodates various power supply configurations. Its dropout voltage is a maximum of 0.8V at 250mA, which is low relatively compared to other regulators, making it efficient even at low input-to-output voltage differentials. The regulator also boasts a low quiescent current of 1mA, which is crucial for minimizing power consumption in standby or low-power modes.

L4931ABPT33-TR Features

• Fixed Output Voltage: The L4931ABPT33-TR provides a stable 3.3V output voltage, which ideal is for powering a wide range of electronic devices and components.
• High Input Voltage Range: With a maximum input voltage of 20V, this regulator can be used in applications with varying input voltage levels, ensuring robustness and flexibility.
• Low Dropout Voltage: The maximum dropout voltage of 0.8V at 250mA ensures high efficiency, especially in applications where the input voltage is close to the output voltage.
• Low Quiescent Current: The quiescent current of 1mA helps in reducing power consumption, making the regulator suitable for battery-powered devices and low-power applications.
• Protection Features: The regulator includes over-current and over-temperature protection, safeguarding the device and connected circuits from potential damage.
• Surface Mount Packaging: The PPAK package is designed for surface-mount technology, facilitating easy integration into compact and high-density PCB designs.
• Compliance: The L4931ABPT33-TR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards for electronic components.

L4931ABPT33-TR Applications

The L4931ABPT33-TR is well-suited for a variety of applications where a stable 3.3V supply is required. Some of the key applications include:

• Consumer Electronics: Ideal for powering microcontrollers, sensors, and other low-power components in devices such as smartphones, tablets, and IoT devices.
• Industrial Equipment: Suitable for use in industrial control systems, automation devices, and other equipment where a reliable and efficient power supply is essential.
• Telecommunications: Can be used in networking equipment, routers, and other telecom devices that require a stable 3.3V supply.
• Medical Devices: Applicable in medical equipment where precise voltage regulation and low power consumption are critical.

Conclusion of L4931ABPT33-TR

The L4931ABPT33-TR is a versatile and efficient linear voltage regulator that offers a balance of performance and reliability. Its low dropout voltage, low quiescent current, and robust protection features make it an excellent choice for a wide range of applications. Despite being marked as obsolete, the L4931ABPT33-TR remains a option reliable for designers seeking a stable 3.3V supply with a maximum output current of 250mA. Its compliance with environmental and regulatory standards further enhances its suitability for modern electronic designs.