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RT8803A - 2/3-Phase PWM Controller

General Description

The RT8803A is a 2/3-phase synchronous buck controller specifically designed to power Intel®/ AMD next generation microprocessors.

It implements an internal 8-bit DAC that is identified by VID code of microprocessor directly.

Key Features

  • include over current protection, programmable soft start, over voltage protection, and output offset setting. RT8803A comes to a small footprint package with VQFN-32L 5x5. Features z z 5V Power Supply 2/3-Phase Power Conversion with Automatic Phase Selection 8-bit VID Interface, Supporting Intel VRD11/VRD10.x and AMD K8, K8_M2 CPUs VR_HOT and VR_FAN Indication Precision Core Voltage Regulation Power Stage Thermal Balance by DCR Current Sensing Adjustable Soft-start Over-Voltage Protection Adju.

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Datasheet Details

Part number RT8803A
Manufacturer Richtek Technology
File Size 590.76 KB
Description 2/3-Phase PWM Controller
Datasheet download datasheet RT8803A 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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RT8803A 2/3-Phase PWM Controller for High-Density Power Supply General Description The RT8803A is a 2/3-phase synchronous buck controller specifically designed to power Intel®/ AMD next generation microprocessors. It implements an internal 8-bit DAC that is identified by VID code of microprocessor directly. RT8803A generates VID table that conform to Intel® VRD10.x and VRD11 core power with 6.25mV increments and 0.5% www.DataSheet4U.com accuracy. RT8803A adopts innovative time-sharing DCR current sensing technique to sense phase currents for phase current balance, load line setting and over current protection. Using a common GM to sense all phase currents eliminates offset and linearity variation between GMs in conventional current sensing methods.