Datasheet Summary
Two Phases Synchronous Buck PWM Controller
General Description
The RT9258 is a two phases synchronous Buck PWM controller with integrated drivers which is optimized for high-performance graphic microprocessor and puter applications. The IC integrates a voltage mode PWM controller, two 5V MOSFET drivers with internal bootstrap diodes, as well as output current monitoring and protection functions into a WQFN-24L 4x4 package.
The inductor currents are sensed by lossless DCR current sensing technique for current balance and over current protection. The RT9258 also Features a reference tracking mode operation in which the feedback voltage is regulated and tracks external input...