STMicroelectronics

The STLQ50 is a BiCMOS linear regulator specifically designed for operating in environments where very low power consumption is required. Its very low quiescent current (3 μA) results in extended battery life, making the device suitable for applications which have very long standby time. The PMOS pass element allows very good dropout values (200 mV at 25 mA IO and 350 mV at full load) without affecting the consumption characteristics. Housed in the very small SOT323-5L, it meets space-saving requirements in battery-powered equipment.

The STLUXTM family of controllers is a part of the STMicroelectronics digital devices tailored for lighting and power conversion applications. The STLUX controllers have been successfully integrated in a wide range of architectures and applications, starting from simple buck converters for driving multiple LED strings, boost for power factor corrections, half-bridge resonant converters for high power dimmable LED strings and up to full bridge controllers for HID lamp ballasts.

The STM1001 microprocessor reset circuit is a low-power supervisory device used to monitor power supplies. It performs a single function: asserting a reset signal whenever the VCCsupply voltage drops below a preset value and keeping it asserted until VCChas risen above the preset threshold for a minimum period of time (trec).