STMicroelectronics L78L33ACUTR Voltage Regulator

The L78L33ACUTR from STMicroelectronics is a fixed output voltage regulator that can offer local on-card regulation, eliminating the distribution problems associated with single-point regulation. This device is part of the L78L series, which is specifically designed to provide a range of microprocessor-based systems with a regulated supply of up to 100 mA.

This regulator features a fixed output voltage of 3.3V, which is a common requirement for many digital circuits, including microcontrollers and other digital signal processing components. The L78L33ACUTR ensures a stable voltage supply, which is critical for the reliable operation of these sensitive electronic devices.

The device comes in a compact SOT-89 package, which is suitable for surface mount technology (SMT) and occupies minimal space on a printed circuit board (PCB). This makes it an excellent choice for space-constrained applications. Its thermal overload protection and short circuit protection features ensure that it remains safe and reliable under various operating conditions.

Additionally, the L78L33ACUTR offers a low dropout voltage, which enhances its efficiency and allows operation over a wider range of input voltages. This characteristic is particularly useful in battery-powered devices where maximizing the use of available power is crucial. The regulator also includes a quiescent current reduction circuit, which minimizes the power consumption when the device is in standby mode, further extending the battery life of portable applications.

Overall, the L78L33ACUTR is a robust voltage regulator designed to meet the needs of a wide array of electronic applications. Its reliability, combined with the protection features and high efficiency, makes it a popular choice among designers for ensuring a stable power supply in their electronic projects.