Analog Devices' LTC3563EDC-TRPBF is a low-noise, wide-input-voltage DC/DC step-down converter with an integrated LDO. It operates over a wide 4.8V to 55V input voltage range and delivers a maximum of 600mA output current. The part supports high-efficiency constant frequency (current mode) Step-Down architecture with very good dynamic control characteristics, allowing implemetation of very fast line and load transient response, without external compensation components. The output voltage range is adjustable from 0.8V to 5.5V. This part also has a low-power operation mode, with a 2µA quiescent current when the output current is below 5mA level. This is ideal for battery-powered applications as well as low-input-voltage applications, such as automotive, Handheld, and embedded systems. Other key features include internal power-good status and soft-start, overtemperature protection, and wider operating temperature range of -40°C to +125°C.