ANALOG DEVICES LTC3255IDD#PBF

LTC3255 is a switched-capacitor step-down DC/DC converter. In applications where the input voltage exceeds twice the output voltage, 2:1 capacitive charge pumping extends output current capability beyond input supply current limits. With its integrated VIN shunt regulator, it excels in 4mA to 20mA current loop applications. This device enables current multiplication; a 4mA input current can power a 7.4mA load continuously. Alternatively, this device serves as a higher efficiency replacement for linear regulators and provides a space-saving inductor free alternative to buck DC/DC converters. It withstands reverse-polarity input supplies and output short-circuits without damage. Safety features including current limit and overtemperature protection further enhance robustness. It is used in application such as industrial control, factory automation, sensors, and SCADA systems, housekeeping power supplies, current-boosting voltage regulators for 4mA to 20mA current loops etc.