The L78L09ACD from STMicroelectronics is a fixed output, three-terminal positive voltage regulator designed to offer a wide range of current and voltage options. This particular model provides a 9V output with a current capacity of up to 100mA. It is a member of the L78L00 series, which is known for its ease of use and robustness.

Key Features

• Output Voltage: Fixed 9V output, ideal for a variety of low-power applications that require a regulated supply voltage.
• Output Current: Capable of delivering up to 100mA, making it suitable for small-scale projects and electronic circuits.
• Package: Available in a compact SO-8 package, which is beneficial for space-constrained applications.
• Thermal Overload Protection: Integrated thermal shutdown mechanism protects the device from damage due to overheating.
• Short Circuit Protection: The built-in short circuit protection ensures long-term reliability and safety for connected components.
• Low Dropout Voltage: Designed to maintain regulation with a minimal difference between the input and output voltage, enhancing efficiency.
• No External Components Required: Stable operation without the need for additional external components, simplifying design and reducing costs.

Applications

The L78L09ACD is versatile and can be used in a variety of electronic devices and projects. Common applications include:

• Battery-powered devices
• Consumer electronics
• Low-power microcontrollers and digital circuits
• Small power supplies
• Portable electronics

Quality and Reliability

STMicroelectronics is known for its commitment to quality, and the L78L09ACD is no exception. It is designed to meet the stringent requirements of the most demanding applications, ensuring both reliability and performance. With its combination of protection features and stable output, the L78L09ACD is an excellent choice for designers looking for a dependable voltage regulator solution.