
Richtek Technology
General Description
The RT8869A is an advanced 2/1-phase synchronous buck controller with 2 integrated MOSFET drivers. It integrates an 8-bit DAC that supports Intel VR11.x CPUs power application.
FEATUREs
• 12V Power Supply Voltage
• 2/1-Phase Power Conversion
• Integrated 2 MOSFET Drivers with Internal
Bootstrap Diode
• Dynamic Phase Control Capability
• 8-bit DAC Supports Intel VR11.x CPUs
• Lossless RDS(ON) Current Sensing for Current Balance
• Adjustable Frequency : 50kHz to 1MHz
• Adjustable Over Current Protection
• Adjustable Soft-Start
• VR_RDY, VR_HOT and VR_SHDN Indications
• Small 40-Lead WQFN Package
• RoHS Compliant and Halogen Free
APPLICATIONs
• Desktop CPU Core Power
• Middle/High End Graphic Cards
• Low Voltage, High Current DC/ DC Converters