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RT8238A

RICHTEK
Part Number RT8238A
Manufacturer RICHTEK
Description Single Synchronous Buck PWM Controller
Published Feb 6, 2015
Detailed Description RT8238A Single Synchronous Buck PWM Controller General Description The RT8238A PWM controller provides high efficiency...
Datasheet PDF File RT8238A PDF File

RT8238A
RT8238A

Overview
RT8238A Single Synchronous Buck PWM Controller General Description The RT8238A 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 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 RT8238A achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs.
Efficiency is further enhanced by it...


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