
Richtek Technology
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% accuracy.
FEATUREs
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
Adjustable Frequency and Typical at 300kHz per Phase
Power Good Indication
32-Lead VQFN Package
RoHS Compliant and 100% Lead (Pb)-Free