STMicroelectronics L78L33ACD13TR Linear Voltage Regulator, 3.3V, 100mA, SOIC-8

The STMicroelectronics L78L33ACD13TR is a fixed, 3-terminal positive voltage regulator delivering a stable 3.3V output. Designed for reliability, it incorporates internal current limiting and thermal shutdown, making it virtually indestructible under fault conditions. When provided with an adequate heat sink, it can supply up to 100mA of output current, making it a versatile solution for a wide range of power management applications.

This voltage regulator is ideal for local or on-card regulation, effectively eliminating noise and distribution problems commonly associated with single-point regulation. It can also be used with power pass elements to create high-current voltage regulators, and it serves as a superior replacement for Zener diode/resistor combinations, offering lower quiescent current and reduced noise.

Key Features

• Output Type: Fixed
• Nominal Output Voltage: 3.3V
• Maximum Output Current: 100mA
• Input Voltage Range: Up to 30V
• Short-Circuit Protection: Built-in
• Thermal Overload Protection: Built-in
• External Components: None required
• Package: SOIC-8

The regulator's compact SOIC-8 package and surface-mount design make it suitable for space-constrained PCB layouts. With an operating temperature range from 0°C to 125°C, it is well-suited for a variety of industrial and consumer applications. Whether used for dedicated local regulation or as part of a larger power supply design, the L78L33ACD13TR provides a dependable, low-noise solution.

This component is RoHS compliant and free from Substances of Very High Concern (SVHC), ensuring compliance with current environmental regulations.