The L4931ABDT33-TR from STMicroelectronics is a highly precise, low dropout voltage regulator (LDO) designed for a wide range of applications that demand high power supply stability and low power consumption. This LDO is part of the L4931 series, known for their low dropout, low quiescent current, and low noise characteristics, making them ideal for battery-powered devices, automotive electronics, and other sensitive applications.

Key Features

• Output Voltage: The L4931ABDT33-TR provides a fixed output voltage of 3.3V, suitable for logic circuits and other standard 3.3V applications.
• High Accuracy: With a tight output voltage tolerance, this regulator ensures precise voltage delivery, which is crucial for sensitive electronic components.
• Low Dropout Voltage: The device features a low dropout voltage, allowing it to continue regulating the output voltage even when the input-to-output differential is minimal.
• Low Quiescent Current: The L4931ABDT33-TR boasts a low quiescent current, making it an energy-efficient choice for battery-operated devices.
• Thermal Shutdown and Current Limiting: Built-in safety features such as thermal shutdown and current limiting protect the device and the application from overcurrent and overheating scenarios.
• Wide Operating Temperature Range: With an operating temperature range from -40°C to 125°C, this LDO can reliably function in extreme environmental conditions.

Applications

The L4931ABDT33-TR is versatile and can be used in various applications, including:

• Automotive electronics
• Battery-powered equipment
• Portable and handheld devices
• Microcontroller power supply
• Industrial control systems

Package and Availability

This voltage regulator is available in a DPAK package, which is suitable for surface-mount technology (SMT) and is designed to handle higher power levels compared to smaller SMD packages. The part number L4931ABDT33-TR indicates that the device is provided in tape and reel packaging, facilitating automated assembly processes for mass production.

With its combination of precision, efficiency, and robustness, the STMicroelectronics L4931ABDT33-TR voltage regulator is an excellent choice for designers looking to optimize their power management solutions.