STMicroelectronics LD1117S50TR Voltage Regulator

The LD1117S50TR from STMicroelectronics is a robust and reliable low-dropout voltage regulator designed to deliver a fixed output voltage of 5V with a current up to 800mA. This regulator is a popular choice for a wide range of applications due to its high efficiency and stability.

With its low dropout voltage of typically 1.2V at maximum load, the LD1117S50TR is particularly suited for battery-powered devices where maximizing battery life is crucial. It operates over a wide input voltage range from 2.6V to 15V, offering flexibility for various power supply configurations.

The device is designed with several protective features to ensure reliability and long-term performance. It includes overcurrent protection, thermal shutdown, and a SOA (Safe Operating Area) control that makes it immune to load dump surge voltages, which is especially important in automotive or industrial environments.

The LD1117S50TR comes in an SOT-223 package, which is designed to offer a compact footprint while still ensuring good thermal performance. Its small size and surface-mount package make it an excellent choice for space-constrained applications.

Applications for this voltage regulator are diverse and include portable consumer devices, computer peripherals, and other microprocessor-based systems that require a stable 5V supply. Its ease of use is further enhanced by the minimal number of external components required; a single input capacitor and a single output capacitor are typically necessary for stability.

With its combination of low dropout performance, protection features, and compact size, the STMicroelectronics LD1117S50TR is an ideal choice for designers looking for a reliable 5V voltage regulator for their next project.

For detailed specifications, application notes, and additional resources, please refer to the official STMicroelectronics website or contact their support team for technical assistance.