LD56100 Ultra-Low Noise Linear Regulator

STMicro's LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV. It is available in DFN8 (1.2 mm x 1.6 mm) package, allowing for maximum space-saving. This device is stabilized with a ceramic capacitor on the output.

The ultra-low dropout voltage, low quiescent current, and fast transient response combined with the internal soft-start circuit make the LD56100 suitable for low power battery-operated applications. An enable logic control function puts the LD56100 in shutdown mode resulting in a total current consumption lower than 0.1 µA. Short-circuit protection with current limit foldback and thermal protection are also included.