The LTC3563EDC#TRMPBF is a switch mode, step-down DC/DC converter manufactured by Analog Devices and is packaged in a 6-lead, 2mm X 2mm DFN package. The device supports input voltage ranging between 2.5V and 5.5V, and provides an output voltage between 1.28V and 1.87V. The device is a power management IC (PMIC) with power supply controller, drivers, and protective features integrated in the circuit. The switching frequency is 2.2MHz, and it has current mode control for fast loop response and improved line and load regulation. The device also includes input undervoltage lockout (UVLO), foldback overcurrent protection (OCP), and thermal shutdown (TSD) protection features.