STMicroelectronics — LD56020 LDO Voltage Regulator

As a high-accuracy voltage regulator, the LD56020 is suitable for use in low-power and battery-powered applications thanks to its ultra-low dropout voltage and low quiescent current.

Operating from an input voltage ranging between a very low 1.1 V and 5.5 V, the LD56020 regulates the output voltage with very high accuracy. The voltage regulator supplies a fixed output voltage in a range between 0.6 V and 4.0 V, selectable in 50 mV steps. Output voltage tolerance is ±2% over the entire operating-temperature range, and just ±1% at 25°C.

The LD56020, which is stabilized with a small ceramic capacitor on the input and output, supplies an output current of up to 0.2 A. An enable logic control function puts the LD56020 in shutdown mode, in which it draws less than 0.1 µA. The device features thermal shutdown protection and a short-circuit current fold-back function.

The LD56020 LDO is supplied in a choice of two packages: