STMicroelectronics L78L08ACUTR Linear Voltage Regulator IC – 8V 100mA with Overcurrent Protection

STMicroelectronics L78L08ACUTR Linear Voltage Regulator – Precision Power Management for Modern Electronics

The STMicroelectronics L78L08ACUTR is a high-performance linear voltage regulator designed to deliver stable 8V output at 100mA current capacity. This compact SOT-89-3 packaged IC combines advanced protection features with reliable performance, making it ideal for a wide range of electronic applications requiring precise voltage regulation.

Technical Excellence in Voltage Regulation

Engineered with STMicroelectronics' proven semiconductor technology, this fixed-output regulator maintains consistent voltage levels even under varying load conditions. Operating from a maximum input voltage of 30V, the L78L08ACUTR efficiently converts power while maintaining a minimal dropout voltage. Its 5.5mA quiescent current ensures energy efficiency, particularly valuable in battery-powered systems where power conservation is critical.

Key performance characteristics include:

Comprehensive Protection Features

This voltage regulator incorporates multiple safety mechanisms to ensure system reliability. Integrated overcurrent protection prevents damage from excessive load currents, while thermal shutdown safeguards against overheating. The built-in short-circuit protection ensures device longevity in demanding environments. These features make the L78L08ACUTR particularly suitable for automotive electronics, industrial control systems, and consumer devices requiring robust power management solutions.

Surface Mount Design for Modern Electronics

Housed in a TO-243AA (SOT-89-3) surface mount package, this regulator enables efficient PCB layout and automated assembly processes. The compact footprint supports space-constrained designs while maintaining excellent thermal performance. With its 45dB PSRR (Power Supply Rejection Ratio) at 120Hz, the device effectively filters input voltage noise, ensuring clean power delivery to sensitive electronic components.

Flexible Integration in Power Systems

The L78L08ACUTR's versatile design allows seamless integration into various power management architectures. Its ability to maintain regulation across wide temperature ranges (0°C to 125°C) makes it suitable for automotive applications, industrial sensors, and embedded systems. The regulator's simple implementation requires minimal external components, reducing overall system complexity and cost.

Whether you're designing portable electronics, sensor interfaces, or low-power instrumentation, this linear regulator offers the perfect balance of performance, protection, and ease of use. STMicroelectronics' commitment to quality ensures consistent performance across production batches, supporting reliable long-term operation in demanding environments.

Tags: Linear Regulator, Voltage Stabilizer, Power Management IC, Surface Mount Device, Electronic Component