Product Overview: L4931A33 from STMicroelectronics

The L4931A33 is a highly reliable, low-dropout voltage regulator designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This voltage regulator is part of the L4931 series, known for their low dropout, low quiescent current, and high-precision output voltage, making them ideal for battery-powered devices and other energy-sensitive applications.

Key Features

• Low Dropout Voltage: The L4931A33 is capable of maintaining regulation with a very small difference between the input and output voltage, which is essential for maximizing battery life in portable devices.
• High Output Voltage Accuracy: It offers a precise output voltage of 3.3V, which is critical for ensuring the stable operation of sensitive electronic circuits.
• Low Quiescent Current: With a very low quiescent current of typically 0.4 mA, the L4931A33 helps to prolong battery life in applications where maintaining a low power consumption is crucial.
• Output Current Capacity: The device can deliver up to 250 mA of output current, suitable for a wide range of low-power applications.
• Thermal Overload Protection: The built-in thermal overload protection automatically shuts down the regulator to prevent damage from overheating.
• Short Circuit Protection: The L4931A33 also includes short circuit protection to safeguard the device and the load from faults and excessive current draw.

Applications

• Battery-powered equipment
• Portable consumer devices
• Mobile phones and PDAs
• Laptop computers
• Electronic toys and games

The L4931A33 is available in multiple package options, including TO-220, TO-92, and DPAK, providing flexibility in design for various applications. Its robust design and comprehensive protection features make it an excellent choice for designers looking for a reliable power management solution. With the L4931A33, STMicroelectronics continues to demonstrate its commitment to providing high-quality, energy-efficient components for the electronics industry.