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RT8241E
High Efficiency Single Synchronous Buck PWM Controller
General Description
The RT8241E PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high
voltage batteries to generate low
voltage CPU core, I/O, and chipset RAM supplies in notebook computers.
The RT8241E supports on chip
voltage programming function between 0.
675V and 0.
9V by controlling GX digital inputs.
The constant-on-time PWM control scheme handles wide input/output
voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency.
The RT8241E achieves high efficiency at...