Texas Instruments Voltage Regulators - DC DC Switching Regulators LM5574MT-NS

The LM5574MT-NS is a step-down switching regulator designed for efficient power management in various applications. It operates within an input voltage range of 6V to 75V and can deliver a continuous output current of 0.5A. The device features an integrated 750m,Ѷ N-channel MOSFET and utilizes an Emulated Current Mode architecture, which enhances line regulation and load transient response while simplifying loop compensation. The operating frequency of the LM5574 is adjustable from 50kHz to 500kHz, allowing for optimization of size and efficiency. Additionally, it includes a frequency synchronization pin for coordinating multiple devices or synchronizing to an external clock, which helps reduce electromagnetic interference (EMI). The regulator is equipped with built-in protections such as cycle-by-cycle current limit, short-circuit protection, and thermal shutdown. The LM5574MT-NS is housed in a TSSOP-16 package and is suitable for automotive and industrial applications. It also offers an adjustable output voltage down to 1.225V with a feedback reference accuracy of 1.5%. The product is supported by WEBENCH¬Æ design tools, facilitating easier integration into power supply designs.