LM5574BLDT [Texas Instruments]

The LM5574 is an easy to use SIMPLE SWITCHER® buck regulator that operates with an input voltage range of 6V to 75V and delivers 0.5A of continuous output current. It integrates a 75V, 750mΩ N-channel MOSFET and utilizes an Emulated Current Mode architecture for inherent line regulation and tight load transient response. The operating frequency is adjustable from 50kHz to 500kHz with a single resistor. Features include cycle-by-cycle current limit, short-circuit protection, thermal shutdown, remote shutdown, and adjustable soft-start. The device is available in a TSSOP-16 package.