STMicroelectronics LD1117SA-18 Voltage Regulator

The LD1117SA-18 from STMicroelectronics is a robust, low-dropout linear voltage regulator designed to provide a fixed output voltage of 1.8V with a capability to deliver up to 800mA of load current. This regulator is an excellent choice for a wide range of electronic applications requiring a stable and reliable power supply.

Key Features

• Low Dropout Voltage: The device features a low dropout voltage, which makes it efficient for applications where the input voltage is very close to the output voltage, reducing power loss and improving overall efficiency.
• High Output Current: With its ability to supply up to 800mA of output current, the LD1117SA-18 can power a variety of ICs and microcontrollers that require a stable 1.8V supply.
• Fixed Output: The regulator provides a fixed output voltage of 1.8V, which is commonly used in digital circuits and is essential for maintaining consistent performance.
• Thermal Overload Protection: The built-in thermal overload protection automatically shuts down the regulator if the internal temperature exceeds safe operating limits, preventing damage to the device.
• Short Circuit Protection: The LD1117SA-18 also includes short circuit protection to safeguard the regulator and the connected load in the event of a fault condition.
• Low Ground Current: The low ground current characteristic of this regulator contributes to its high efficiency, making it suitable for battery-powered applications.

Applications

The LD1117SA-18 is versatile and can be used in various applications, including:

• Consumer Electronics
• Portable Devices
• Computer Peripherals
• Embedded Systems

Package and Availability

STMicroelectronics offers the LD1117SA-18 in a TO-220 package, which is known for its ease of handling and good thermal performance. The product is widely available through STMicroelectronics' distribution network, ensuring reliable supply for both small-scale projects and large-volume production.

For designers and engineers looking for a stable and efficient voltage regulator, the LD1117SA-18 presents an ideal solution that combines performance, protection features, and reliability in a single component.