LM25574MT Datasheet PDF - TI

●The LM25574MT is a SIMPLE SWITCHER® easy-to-use Buck Regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 to 42V, the LM25574 delivers 0.5A of continuous output current with an integrated 750mR N-channel MOSFET. The regulator utilizes an emulated current mode architecture which provides inherent line regulation, tight load transient response and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 1MHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC"s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM25574 guarantees robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down and remote shut-down.

● Master or slave frequency synchronization

● Adjustable soft-start

● Emulated current mode control architecture

● Wide bandwidth error amplifier

● Built-in protection

● Integrated 42V, 750mR N-channel MOSFET

● 1.5% Feedback reference accuracy