STMicroelectronics Voltage Regulators - Linear LD1117S18CTR

The LD1117S18CTR is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a fixed output voltage of 1.8 V with a maximum output current of 800 mA. It features a low dropout voltage of approximately 1 V, making it suitable for applications requiring efficient voltage regulation. The device is available in multiple package types, including SOT-223, which optimizes thermal performance and saves space on the PCB. The regulator maintains a tight output voltage tolerance of ± 1% at 25 °C and offers a supply voltage rejection ratio of 75 dB (typical). It requires a minimum of a 10 µF capacitor for stability, and it includes internal current and thermal limiting for enhanced reliability. This product is suitable for various applications, including SCSI-2 active termination.