S-1112B33PI-L6STFG

The S-1112B33PI-L6STFG is a low-voltage, low-dropout (LDO) linear regulator. It provides a stable output voltage, even when the input voltage is highly variable or changes over time.

LDO regulators are ideally suited for providing low noise, low supply current and low peak-current applications and the S-1112B33PI-L6STFG is no exception. The device features extended input voltage range from 4.0V to 17.3V, adjustable output voltage range from 0.5V to 13.3V and quiescent current of typically 15 μA and an output current of 1 A..

The S-1112B33PI-L6STFG is a cost-effective solution for applications such as data acquisition systems, consumer electronics, microprocessor systems and medical equipment. The device uses a triple-compare architecture and features fast transient response and enhanced output accuracy, including low line and load regulations. It also features reverse input current protection, short circuit protection, current limiting and thermal shutdown.

In terms of its working principle, the S-1112B33PI-L6STFG uses two transistors and three resistors to compare the reference voltage, Vref, which is set externally, with an internal reference voltage, VFB, set by a resistor divider network. When the input voltage exceeds VFB, the device starts flowing current from the input to the output and the output voltage is regulated to Vout=Vref-Iout*RS. This means that the voltage at the output (Vout) of the device is always the same regardless of how much current is flowing out (Iout).

The S-1112B33PI-L6STFG is a great choice for applications where precise and reliable voltage regulation is required. Its wide input range, precise current limits, low dropout voltage and fast transient response make it a great choice for battery-powered and low-noise applications such as data acquisition systems, consumer electronics, microprocessor systems and medical equipment.