Low Quiescent Current Step Down Converter | E522.10

E522.10 is a low-cost, easy-to-use step down converter suitable for automotive (QFN20L4) or industrial/ consumer environment (QFN20L4 and SOIC8EP) at elevated junction temperatures up to +160°C. Overtemperature protection is available for a typical junction temperature of +185°C. It provides resistor programmable output voltage based on internal 800mV reference, also supporting current regulation topologies (e.g. LED drivers) by providing internal 200mV reference. Low current consumption of typ. only 10μA during sleep mode are provided. Integrated light-load detection can automatically switch current consumption to only 15μA with active output regulation. The versatile high-voltage power-good signal provides under- or overvoltage information. Utilizing fast adaptive frequency operation (pulse frequency modulation scheme) from 0Hz up to typ. 500kHz allows best possible line- and load-transient response without the need of external compensation networks. Regulation is open-load stable and allows 100% duty cycle without bootstrap capacitance. Integrated foldback overcurrent protection limits input currents during startup and in case of output short circuit.