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RT8126B - High Efficiency Single Synchronous Buck PWM Controller

This page provides the datasheet information for the RT8126B, a member of the RT8126A High Efficiency Single Synchronous Buck PWM Controller family.

Description

The RT8126A/B/C 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.

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Datasheet preview – RT8126B

Datasheet Details

Part number RT8126B
Manufacturer Richtek
File Size 175.65 KB
Description High Efficiency Single Synchronous Buck PWM Controller
Datasheet download datasheet RT8126B Datasheet
Additional preview pages of the RT8126B datasheet.

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Full PDF Text Transcription

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® RT8126A/B/C High Efficiency Single Synchronous Buck PWM Controller General Description The RT8126A/B/C 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 RT8126A/B/C achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs.
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