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RT8802A - 2/3/4/5-Phase PWM Controller

General Description

The RT8802A is a 2/3/4/5-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. RT8802A comes to a small footprint package with VQFN-40L 6x6. Features z z 5V Power Supply 2/3/4/5-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.

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Datasheet Details

Part number RT8802A
Manufacturer Richtek Technology
File Size 588.54 KB
Description 2/3/4/5-Phase PWM Controller
Datasheet download datasheet RT8802A Datasheet

Full PDF Text Transcription (Reference)

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RT8802A 2/3/4/5-Phase PWM Controller for High-Density Power Supply General Description The RT8802A is a 2/3/4/5-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. RT8802A generates VID table that conform to Intel® VRD10.x and VRD11 core power with 6.25mV increments and 0.5% www.DataSheet4U.com accuracy. RT8802A 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.