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DS8817A - Dual-Phase PWM Controller

General Description

The RT8817A is a 2/1 phase synchronous Buck PWM controller which is optimized for high performance graphic microprocessor and computer applications.

Key Features

  • external reference input and PWMVID dynamic output voltage control, in which the feedback voltage is regulated and tracks external input reference volt.

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Datasheet Details

Part number DS8817A
Manufacturer Richtek
File Size 349.24 KB
Description Dual-Phase PWM Controller
Datasheet download datasheet DS8817A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® RT8817A Dual-Phase PWM Controller with PWM-VID Reference General Description The RT8817A is a 2/1 phase synchronous Buck PWM controller which is optimized for high performance graphic microprocessor and computer applications. The IC integrates a Constant-On-Time (COT) PWM controller, two MOSFET drivers with internal bootstrap diodes, as well as channel current balance and protection functions including Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), current limit, and thermal shutdown into the WQFN-24L 4x4 package. The RT8817A adopts RDS(ON) current sensing technique. Current limit is accomplished through continuous inductorcurrent-sense, while RDS(ON) current sensing is used for accurate channel current balance.