The LE33CD-TR from STMicroelectronics is a highly-reliable, low drop voltage regulator that is designed to deliver a fixed output voltage with a high level of accuracy. This component is particularly suitable for battery-powered devices where extended battery life is essential, and for applications that require a stable voltage supply despite fluctuations in input voltage or variations in load.

Key Features

• Output Voltage: The LE33CD-TR provides a fixed output of 3.3V, which is a common requirement for many low-power electronics, ensuring compatibility with a wide range of devices and systems.
• Low Dropout Voltage: With a low dropout voltage, this regulator continues to operate efficiently even when the input voltage is close to the output voltage, minimizing power loss and conserving energy.
• High Accuracy: The output voltage is maintained with high precision, which is critical for sensitive electronic components that require a stable power supply for optimal performance.
• Current Supply: It can supply up to 100 mA of output current, which is suitable for a variety of low power applications.
• Thermal Overload Protection: The device includes built-in thermal overload protection that safeguards it from damage due to excessive power dissipation or high operating temperature.
• Short Circuit Protection: The LE33CD-TR also features short-circuit protection, enhancing its reliability and longevity by preventing damage from output short circuits.
• Low Quiescent Current: The regulator is designed for energy-sensitive applications with its low quiescent current, which reduces the power consumed when the device is in standby mode.
• Package: Available in a surface-mount TO-252 package, the LE33CD-TR is suitable for automated mass production and is designed to occupy minimal board space.

Applications

The LE33CD-TR is versatile and can be used in various applications including, but not limited to, mobile phones, PDAs, cameras, and other portable devices where power efficiency is crucial. It is also an excellent choice for microcontroller power supplies and other digital systems that require a regulated 3.3V supply.

Summary

In summary, the STMicroelectronics LE33CD-TR voltage regulator is an optimal solution for designers looking for a low-dropout, high-accuracy voltage source. Its robust protection features and low quiescent current make it an excellent choice for both portable and stationary applications where power efficiency and reliability are key concerns.